references.bib

%%%%%%%%%%%%%%% Own papers %%%%%%%%%%%%%%%
@article{Pisanty_momentum_transfers_2014,
  title = {Momentum transfers in correlation-assisted tunneling},
  author = {Pisanty, Emilio and Ivanov, Misha},
  journal = {Phys. Rev. A},
  volume = {89},
  number = {4},
  pages = {043416},
  numpages = {6},
  year = {2014},
  doi = {10.1103/PhysRevA.89.043416},
  eprint = {http://arxiv.org/abs/1309.4765},
  archive = {{arXiv}:1309.4765},
}
@article{Pisanty_spin_conservation_2014,
  title = {Spin conservation in high-order-harmonic generation using bicircular fields},
  author = {Pisanty, Emilio and Sukiasyan, Suren and Ivanov, Misha},
  journal = {Phys. Rev. A},
  volume = {90},
  number = {4},
  pages = {043829},
  numpages = {7},
  year = {2014},
  doi = {10.1103/PhysRevA.90.043829},
  eprint = {http://arxiv.org/abs/1404.6242},
  archive = {{arXiv}:1404.6242},
}

@article{Ivanov_nature_photonics_2014,
  title = {High-harmonic generation:\ Taking control of polarization},
  author = {Ivanov, Misha and Pisanty, Emilio},
  journal = {Nature Photon.},
  volume = {8},
  number = {7},
  pages = {501--503},
  year = {2014},
  doi = {10.1038/nphoton.2014.141},
  eprint = {http://hdl.handle.net/10044/1/41942},
  archive = {Imperial College eprint},
}
@article{Pisanty_slalom_2016,
  title = {Slalom in complex time:\ emergence of low-energy structures in tunnel ionization via complex time contours},
  author = {Emilio Pisanty and Misha Ivanov},
  journal = {Phys. Rev. A.},
  volume = {93},
  number = {4},
  pages = {043408},
  year = {2016},
  doi = {10.1103/PhysRevA.93.043408},
  eprint = {http://arxiv.org/abs/1507.00011},
  archive = {{arXiv}:1507.00011},
}
@article{Pisanty_kinematic_2016,
  title = {Kinematic origin for near-zero energy structures in mid-{IR} strong field ionization},
  author = {Emilio Pisanty and Misha Ivanov},
  journal = {J. Phys. B: At. Mol. Opt. Phys.},
  year = {2016},
  volume = {49},
  number = {10},
  pages = {105601},
  doi = {10.1088/0953-4075/49/10/105601}
}
@article{Pisanty_lorentz_2016,
  author = {Pisanty, Emilio and Hickstein, Daniel D. and Galloway, Benjamin R. and Durfee, Charles G. and Kapteyn, Henry C. and Murnane, Margaret M. and Ivanov, Misha},
  title = {{High harmonic interferometry of the {Lorentz} force in strong mid-infrared laser fields}},
  journal = {New J. Phys.},
  volume = {20},
  number = {5},
  pages = {053036},
  year = {2018},
  doi = {10.1088/1367-2630/aabb4d},
  eprint = {http://arxiv.org/abs/1606.01931},
  archive = {arXiv:1606.01931}
}


@article{galloway_lorentz_2016,
  title = {Lorentz drift compensation in high harmonic generation in the soft and hard {X}-ray regions of the spectrum},
  author = {Benjamin R Galloway and Dimitar Popmintchev and Emilio Pisanty and Daniel D Hickstein and Margaret M Murnane and Henry C Kapteyn and Tenio Popmintchev},
  journal = {Opt. Express},
  volume = {24},
  number = {19},
  pages = {21818--21832},
  year = {2016},
  doi = {10.1364/OE.24.021818},
  eprint = {http://jilawww.colorado.edu/kmgroup/publications/pubinfo/lorentz-drift-compensation-high-harmonic-generation-soft-and-hard-x-ray-regions},
  archive = {JILA eprint},
}

%%% MRes report %%%
@MastersThesis{MResReport,
  author  =  {Emilio Pisanty},
  title  =  {Under-the-barrier electron-ion interaction during tunnel ionization},
  type = {{MRes} report},
  school  =  {Imperial College London},
  year  =  {2012},
  eprint = {http://arxiv.org/abs/1307.7329},
  archive = {arXiv:1307.7329},
  url = {http://www3.imperial.ac.uk/controlledquantumdynamics/people/students/cohortthree/emiliopisantyalatorre},
}

%%%%%%%%%%%%%% ------------ %%%%%%%%%%%%%%





%%%%%%%%%%%%%% Own software %%%%%%%%%%%%%%
@misc{RB-SFA,
  author = {E. Pisanty},
  title = {{RB-SFA}: {H}igh {H}armonic {G}eneration in the {S}trong {F}ield {A}pproximation via {M}athematica},
  year = {2016},
  publisher = {GitHub},
  journal = {GitHub repository},
  howpublished = {\url{https://github.com/episanty/RB-SFA}, \href{http://dx.doi.org/10.5281/zenodo.164626}{v2.1.2}},
  commit= {}
}


@misc{ARMSupport,
  author = {E. Pisanty},
  title = {{ARMSupport}: {A} support suite for {A}nalytical {$R$}-{M}atrix calculations.},
  year = {2016},
  publisher = {GitHub},
  journal = {GitHub repository},
  howpublished = {\url{https://github.com/episanty/ARMSupport}, \href{https://doi.org/10.5281/zenodo.164629}{v1.0.15}},
  commit= {}
}

@misc{EPToolbox,
  author = {E. Pisanty},
  title = {{EPToolbox}},
  year = {2016},
  publisher = {GitHub},
  journal = {GitHub repository},
  howpublished = {\url{https://github.com/episanty/EPToolbox}, \href{https://doi.org/10.5281/zenodo.164630}{v1.0.0}},
  commit= {}
},

@misc{QuODD,
  author = {E. Pisanty},
  title = {{QuODD}: {Q}uantum {O}rbits {D}ynamic {D}ashboard.},
  year = {2015},
  publisher = {GitHub},
  journal = {GitHub repository},
  howpublished = {\url{https://github.com/episanty/QuODD}, \href{https://doi.org/10.5281/zenodo.164633}{v1.0.0}},
  commit= {}
}



%%%%%%%%%% Other own sundries %%%%%%%%%%%%

%%% Figure-maker
@misc{FigureMakerThesis,
  author = {E. Pisanty},
  title = {{Figure-maker code for {\it{E}lectron Dynamics in Complex Time and Complex Space}}},
  year = {2016},
  howpublished = {Zenodo:183748, \href{http://dx.doi.org/10.5281/zenodo.183748}{\texttt{doi:10.5281/zenodo.183748}}}
}

%%% Supplementary information
@misc{SupplementaryInformation,
  note = {{Supplementary Information available online at \url{http://ElectronDynamicsInComplexTimeAndSpace.github.io}, or for local use at \href{http://dx.doi.org/10.5281/zenodo.61983}{\texttt{doi:10.5281/zenodo.61983}} (2016)}}
}
%%Also archived in \citer{FigureMakerThesis}.


%%%%%%%%%%%%%% ------------ %%%%%%%%%%%%%%










%%%%%%%%%%%%%% Various physics %%%%%%%%%%%%%%

%%% Pechukas - analytical structure of adiabatic eigenstate solutions
@article{hwang_adiabatic_1977,
  title = {The adiabatic theorem in the complex plane and the semiclassical calculation of nonadiabatic transition amplitudes},
  author = {Hwang, Jenn-Tai and Pechukas, Philip},
  journal = {J. Chem. Phys.},
  volume = {67},
  number = {10},
  year = {1977},
  pages = {4640--4653},
  doi = {10.1063/1.434630},
}
@article{pechukas_analytic_1976,
  title = {Analytic structure of the eigenvalue problem as used in semiclassical theory of electronically inelastic collisions},
  author = {Pechukas, Philip and George, Thomas F. and Morokuma, Keiji and McLafferty, Francis J. and Laing, John R.},
  journal = {J. Chem. Phys.},
  volume = {64},
  number = {3},
  year = {1976},
  pages = {1099--1105},
  doi = {10.1063/1.432297},
}
%%% The electronic collision theory they address
@article{miller_semiclassical-collisions_1972,
  title = {Semiclassical Theory of Electronic Transitions in Low Energy Atomic and Molecular Collisions Involving Several Nuclear Degrees of Freedom},
  author = {W H Miller and T F George},
  journal = {J. Chem. Phys.},
  volume = {56},
  number = {11},
  pages = {5637--5652},
  year = {1972},
  doi = {10.1063/1.1677083},
}



%%% Dykhne formula
@article{dykhne_adiabatic_1962,
  title = {Adiabatic Perturbation of Discrete Spectrum States},
  author = {Dykhne, A. M.},
  journal = {Soviet Phys. JETP},
  year = {1962},
  volume = {14},
  number = {4},
  pages = {941--943},
  note = {[\href{http://www.jetp.ac.ru/cgi-bin/e/index/e/14/4/p941?a=list}{\textit{{Z}h. {E}ksp. {T}eor. {F}iz.} \textbf{41} no. 4, 1324-1327 (1961)}]},
}

%%% Fetter & Walecka
@book{fetter_walecka,
  title = {Quantum Theory of Many-Particle Systems},
  author = {A L Fetter and J D Walecka},
  publisher = {McGraw-Hill},
  address = {USA},
  year = {1971},
}

%%% Landau-
@book{landau_QM,
  title = {Quantum Mechanics: non-relativistic theory},
  author = {L. D. Landau and E. M. Lifshitz},
  volume = {3},
  series = {Course of Theoretical Physics},
  publisher = {Pergamon},
  address = {Oxford},
  year = {1977},
  edition = {3$^\mathrm{rd}$},
  pages = {295-296},
}

%%% David Tannor for WKB methods
@book{Tannor_time_dependent_QM,
  title = {Introduction to Quantum Mechanics: A Time-Dependent Perspective},
  author = {D J Tannor},
  publisher = {University Science Books},
  year = {2007},
  address = {Sausalito, Calif}
}

%%% Cohen-Tannoudji for the same.
@Book{cohen-tannoudji_QM,
  author = {Cohen-Tannoudji, Claude and Diu, Bernard and Lalo{\"e}, Frank},
  title = {Quantum mechanics},
  publisher = {Wiley},
  year = {1977},
  address = {New York},
  volume = {1}
}

%%% Dirac "large part of physics and the whole of chemistry"
@article{dirac_qm-many-electron_1929,
  title = {Quantum Mechanics of Many-Electron Systems},
  author = {P. A. M. Dirac},
  journal = {Proc. Roy. Soc. Lond., Ser. A},
  number = {792},
  pages = {714-733},
  volume = {123},
  year = {1929},
  doi = {10.1098/rspa.1929.0094},
  eprint = {http://www.jstor.org/stable/95222},
  archive = {JSTOR:95222},
}
%%journal = {Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character},

%%% Secular terms for nondipole chapter
@book{Nayfeh_secular_terms,
  title = {Introduction to Perturbation Techniques},
  author = {Ali Hasan Nayfeh},
  publisher = {Wiley},
  year = {1993},
  address = {New York},
}

%%% Lipson Optical Physics, for intensity as dipole acceleration
@book{lipson_optical-physics,
  author = {S G Lipson, H Lipson, D S Tannhauser},
  title = {Optical Physics},
  publisher = {Cambridge University Press},
  address = {Cambridge},
  year = {1995},
  pages = {104},
}

%%% Cohen-Tannoudji photons&atoms for A-dot-p ordering
@book{cohen-tannoudji_photons-and-atoms,
  title = {Photons and Atoms: Introduction to Quantum Electrodynamics},
  author = {Cohen-Tannoudji, Claude and Dupont-Roc, Jacques and Grynberg, Gilbert},
  pages = {197},
  publisher = {Wiley},
  address = {New York},
  year = {1989}
}

%%% Reichl Floquet theory in Airy functions
@article{Li-Reichl-Floquet,
  title = {Transport in strongly driven heterostructures and bound-state-induced dynamic resonances},
  author = {Li, Wenjun and Reichl, L. E.},
  journal = {Phys. Rev. B},
  volume = {62},
  number = {12},
  pages = {8269--8275},
  numpages = {0},
  year = {2000},
  doi = {10.1103/PhysRevB.62.8269},
}

%%% reference for F(\cos(\theta),\sin(\theta)\cos(\phi)) angular wavefunction
@book{radzig_reference_data,
  author = {A. A. Radzig and B. M. Smirnov},
  title = {Reference Data on Atoms, Molecules, and Ions},
  publisher = {Springer-Verlag},
  address = {Berlin},
  year = {1985},
}

%%% Landau-Zener / Landau-Dykhne
@article{wittig_landau-zener_2005,
  title = {The {Landau}-{Zener} formula},
  author = {Curt Wittig},
  journal = {J. Phys. Chem. B},
  volume = {109},
  number = {17},
  pages = {8428--8430},
  year = {2005},
  doi = {10.1021/jp040627u},
  eprint = {http://curtwittig.com/wp-content/uploads/226.-Wittig-JCPB109-8428-05pdf.pdf},
  archive = {Author's eprint},
}

%%% Tannor complex trajectories
@article{schiff-tannor_path-integral-complex-trajectory_2011,
  title = {Path-integral derivations of complex trajectory methods},
  author = {Schiff, Jeremy and Goldfarb, Yair and Tannor, David J.},
  journal = {Phys. Rev. A},
  volume = {83},
  number = {1},
  pages = {012104},
  year = {2011},
  doi = {10.1103/PhysRevA.83.012104},
  eprint = {http://arxiv.org/abs/0807.4659},
  archive = {arXiv:0807.4659},
}
@article{goldfarb-tannor_complex-trajectory-wkb_2008,
  author = {Goldfarb, Yair and Schiff, Jeremy and Tannor, David J.},
  title = {Complex trajectory method in time-dependent {WKB}},
  journal = {J. Chem. Phys.},
  year = {2008},
  volume = {128},
  number = {16},
  pages = {164114},
  doi = {10.1063/1.2907336},
  eprint = {http://arxiv.org/abs/0707.0117},
  archive = {arXiv:0707.0117},
}
@article{goldfarb-tannor_bohmian-complex_2006,
  author = {Goldfarb, Yair and Degani, Ilan and Tannor, David J.},
  title = {Bohmian mechanics with complex action: A new trajectory-based formulation of quantum mechanics},
 journal = {J. Chem. Phys.},
  year = {2006},
  volume = {125},
  number = {23},
  pages = {231103},
  doi = {10.1063/1.2400851},
  eprint = {https://arxiv.org/abs/quant-ph/0604150},
  archive = {arXiv:quant-ph/0604150},
}

%%% Instantons
@misc{zinn_instantons_1987,
  title = {The principles of instanton calculus},
  author = {{Zinn-Justin}, Jean},
  year = {1982},
  howpublished = {\textit{Les Houches, session XXXIX}, Recent Advances in Field Theory and Statistical Mechanics},
}


%%% Complex classical trajectories
@article{anderson_complex-classical-trajectories_2012,
  title = {Complex trajectories in a classical periodic potential},
  author = {A G Anderson and C M Bender},
  journal = {J. Phys. A: Math. Theor.},
  volume = {45},
  number = {45},
  pages = {455101},
  year = {2012},
  doi = {10.1088/1751-8113/45/45/455101},
  eprint = {https://arxiv.org/abs/1205.3330},
  archive = {arXiv:1205.3330},
}




%%%%%%%%%%%%%% --------------- %%%%%%%%%%%%%%











%%%%%%%%%%%%%% Various mathematics %%%%%%%%%%%%%%

%%% Saddle-point methods
@Book{BruijnAsymptotics,
 author = {{de Bruijn}, Nicolaas Govert},
 title = {Asymptotic methods in analysis},
 publisher = {Dover Publications},
 year = {1981},
 address = {New York}
}
@book{Bleistein_Integrals,
  title = {Asymptotic Expansions of Integrals},
  author = {Norman Bleistein and Richard A Handelsman},
  publisher = {Dover},
  year = {1975},
  address = {New York}
}
@book{GerlachSPAonline,
  author = {Ulrich H. Gerlach},
  title = {Linear Mathematics in Infinite Dimensions: Signals, Boundary Value Problems and Special Functions},
  year = {2015},
  note = {Available online at \url{http://people.math.osu.edu/gerlach.1/math/BVtypset}. Retrieved \href{http://web.archive.org/web/20160302183032/https://people.math.osu.edu/gerlach.1/math/BVtypset}{2 March 2016}},
  pages = {367--377}
} Special Function Theory / The Method of Steepest Descent and Stationary Phase / eqn. 557.


%%% Jeffreys & Jeffreys
@book{JeffreysJeffreys,
  title = {Methods of Mathematical Physics},
  author = {Harold Jeffreys and Bertha Swirles Jeffreys},
  edition = {3},
  year = {1965},
  pages = {87},
  publisher = {Cambridge University Press},
  eprint = {http://www.archive.org/details/MethodsOfMathematicalPhysics3rd.ed.},
  archive = {ark:/13960/t3hx2br67}
}

%%% DLMF
@book{NIST_handbook,
  title = {{N}{I}{S}{T} Handbook of Mathematical Functions},
  editor = {Olver, F W J and D W Lozier and R F Boisvert and C W Clark},
  publisher = {Cambridge University Press NIST},
  address = {Cambridge, New York},
  year = {2010},
  note = {Available online as the \href{http://dlmf.nist.gov/}{Digital Library of Mathematical Functions}.}
}

%%% Gradsteyn and Ryzhik
@book{gradshteyn_ryzhik,
  title = {Table of Integrals, Series, and Products},
  author = {Gradshteyn, I. S. and Ryzhik, I. M.},
  editor = {A Jeffrey and D Zwillinger},
  publisher = {Academic Press},
  edition = {7},
  year = {2007},
}

%%% Watson Bessel functions
@book{watson_bessel_functions,
  title = {A Treatise on the Theory of Bessel Functions},
  author = {G N Watson},
  edition = {2},
  publisher = {Cambridge University Press},
  year = {1966},
  address = {Cambridge},
  archive = {ark:/13960/t2j68gp5k},
  eprint = {http://www.archive.org/details/ATreatiseOnTheTheoryOfBesselFunctions}
}

%%% Complex analysis
@book{churchill_complex_variables,
  author = {Ruel V Churchill and James W Brown and Roger F Verhey},
  title = {Complex variables and applications},
  publisher = {McGraw-Hill},
  address = {New York},
  year = {1974}
}
@book{noguchi_complex_analysis,
  author = {Junjiro Noguchi},
  title = {Introduction to complex analysis},
  publisher = {American Mathematical Society},
  year = {1998},
  address = {Providence, R.I},
}
@book{hormander_pdes,
 title = {Linear Partial Differential Operators},
 author = {Lars H{\"o}rmander},
 publisher = {Springer},
 year = {1963},
 address = {Berlin G{\"o}ttingen Heidelberg},
 series = {Grundlehren der mathematischen Wissenschaften},
 volume = {116},
}


%%%%%%%%%%%%%% --------------- %%%%%%%%%%%%%%





















%%%%%%%%%%%%%% General strong-field physics %%%%%%%%%%%%%%

%%% Reviews for strong field ionization
@article{Popov_imaginary_time,
  title={Imaginary-time method in quantum mechanics and field theory},
  author={Popov, V.S.},
  journal={Phys. Atom. Nucl.},
  year={2005},
  volume={68},
  number={4},
  pages={686-708},
  doi={10.1134/1.1903097},
}

@article{long_Keldysh_theory,
  author = {Long, Zi Jian and Liu, Wing-Ki},
  title = {Keldysh theory of strong-field ionization},
  journal = {Can. J. Phys.},
  volume = {88},
  number = {4},
  pages = {227--245},
  year = {2010},
  doi = {10.1139/P09-111},
}

@article{popruzhenko_Keldysh_theory,
  author = {S V Popruzhenko},
  title = {Keldysh theory of strong field ionization: history, applications, difficulties and perspectives},
  journal = {J. Phys. B: At. Mol. Opt. Phys.},
  volume = {47},
  number = {20},
  pages = {204001},
  year = {2014},
  doi = {10.1088/0953-4075/47/20/204001}
}




%%%%% History of strong-field ionization %%%%%

%%% Maiman laser
@article{maiman_laser_1960,
  title = {Stimulated Optical Radiation in Ruby},
  author = {T. H. Maiman},
  journal = {Nature},
  volume = {187},
  number = {},
  pages = {493--494},
  year = {1960},
  doi = {10.1038/187493a0},
}

%%% Multiphoton experiments 1960-1965
@article{bonch_multiphoton-review_1965,
  author={A M Bonch-Bruevich and V A Khodovo\u{i}},
  title={Multiphoton prrocesses},
  journal={Sov. Phys. Uspekhi},
  volume={8},
  number={1},
  pages={1},
  year={1965},
  doi = {10.1070/PU1965v008n01ABEH003060},
}
@article{franken_second-harmonic_1961,
  title = {Generation of Optical Harmonics},
  author = {Franken, P. A. and Hill, A. E. and Peters, C. W. and Weinreich, G.},
  journal = {Phys. Rev. Lett.},
  volume = {7},
  number = {4},
  pages = {118--119},
  year = {1961},
  doi = {10.1103/PhysRevLett.7.118},
}
%  eprint = {http://www2.mpq.mpg.de/~rnp/download/ls1415/papers/Franken_1961.pdf},
%  archive = {MPG eprint},
@article{new_third-harmonic_1967,
  title = {Optical Third-Harmonic Generation in Gases},
  author = {New, G. H. C. and Ward, J. F.},
  journal = {Phys. Rev. Lett.},
  volume = {19},
  number = {10},
  pages = {556--559},
  year = {1967},
  doi = {10.1103/PhysRevLett.19.556},
}



%%% Voronov - initial multiphoton experiment
@article{voronov_initial-multiphoton_1965,
  title = {Ionization of the xenon atom by the electric field of ruby laser emission},
  author = {G. S. Voronov and N. B. Delone},
  journal = {JETP Lett.},
  volume = {1},
  number = {2},
  pages = {66--68},
  year = {1965},
  eprint = {http://www.jetpletters.ac.ru/ps/1590/article_24398.shtml},
  archive = {JETP Letters eprint},
}  
@article{voronov_follow-up-multiphoton_1966,
  title = {Many-photon Ionization of the Xenon Atom by Ruby Laser Radiation},
  author = {Voronov, G. S. and Delone, N. B.},
  journal = {Sov. Phys. {JETP}},
  volume = {23},
  number = {1},
  pages = {54--58},
  year = {1966},
  note = { [\href{http://www.jetp.ac.ru/cgi-bin/e/index/r/50/1/p78?a=list}{\textit{Zh. Eksp. Teor. Fiz.}, \textbf{50} no.~1, p.~78 (1966)}]},
}

%%% Agostini first above-threshold ionization
@article{agostini_ati-initial_1979,
  title = {Free-Free Transitions Following Six-Photon Ionization of Xenon Atoms},
  author = {Agostini, P. and Fabre, F. and Mainfray, G. and Petite, G. and Rahman, N. K.},
  journal = {Phys. Rev. Lett.},
  volume = {42},
  number = {17},
  pages = {1127--1130},
  year = {1979},
  doi = {10.1103/PhysRevLett.42.1127},
}

%%% Agostini, more ATI, now with peak suppression
@article{agostini_ati-development_1988,
  title = {Photoelectric effect under strong irradiation},
  author = {P. Agostini and  G. Petite},
  journal = {Contemp. Phys.},
  volume = {29},
  number = {1},
  pages = {57-77},
  year = {1988},
  doi = {10.1080/00107518808213751},
}

%%% Petite ATI, with peak suppression
@article{petite_ati-nonperturbative_1987, 
  title = {Intensity, pulse width, and polarization dependence of above-threshold-ionization electron spectra}, 
  author = {Guillaume Petite and Pierre Agostini and Fran\c{c}ois Yergeau}, 
  journal = {J. Opt. Soc. Am. B}, 
  number = {5}, 
  pages = {765--769}, 
  volume = {4}, 
  year = {1987},
  doi = {10.1364/JOSAB.4.000765},
}

%%% ATI with plateau
@article{paulus_ati-plateau_1994,
  title = {Plateau in above threshold ionization spectra},
  author = {Paulus, G. G. and Nicklich, W. and Xu, Huale and Lambropoulos, P. and Walther, H.},
  journal = {Phys. Rev. Lett.},
  volume = {72},
  number = {18},
  pages = {2851--2854},
  year = {1994},
  doi = {10.1103/PhysRevLett.72.2851},
}
% (also Europhys. Lett., 27 (4), pp. 267-272 (1994) , J. Phys. B: At. Mol. Opt. Phys. 29 No 7 (1996) L249-L256)  ???

%%% ATI, strong differences between linear and circular polarizations
@article{corkum_long-wavelength-ati_1989,
  title = {Above-threshold ionization in the long-wavelength limit},
  author = {Corkum, P. B. and Burnett, N. H. and Brunel, F.},
  journal = {Phys. Rev. Lett.},
  volume = {62},
  number = {11},
  pages = {1259--1262},
  year = {1989},
  doi = {10.1103/PhysRevLett.62.1259},
}

%%% ATI angular dependence
@article{baorui_ati-rings_1993,
  title = {Intensity-dependent scattering rings in high order above-threshold ionization},
  author = {Yang, Baorui and Schafer, K. J. and Walker, B. and Kulander, K. C. and Agostini, P. and DiMauro, L. F.},
  journal = {Phys. Rev. Lett.},
  volume = {71},
  number = {23},
  pages = {3770--3773},
  year = {1993},
  doi = {10.1103/PhysRevLett.71.3770},
  eprint = {http://dimauro.osu.edu/node/97},
  archive = {OSU eprint}
}

%%% 
@article{brunel_not-so-resonant_1987,
  title = {Not-so-resonant, resonant absorption},
  author = {Brunel, F.},
  journal = {Phys. Rev. Lett.},
  volume = {59},
  number = {1},
  pages = {52--55},
  year = {1987},
  doi = {10.1103/PhysRevLett.59.52},
}

%%% ATI with long peak series
@article{schafer_ati-beyond-the-hhg-cutoff_1993,
  title = {Above threshold ionization beyond the high harmonic cutoff},
  author = {Schafer, K. J. and Yang, Baorui and DiMauro, L. F. and Kulander, K. C.},
  journal = {Phys. Rev. Lett.},
  volume = {70},
  number = {11},
  pages = {1599--1602},
  year = {1993},
  doi = {10.1103/PhysRevLett.70.1599},
  eprint = {http://www-physics.mps.ohio-state.edu/~dimauro/Publications/DiMauro/1993.Above.Shafer.pdf},
  archive = {OSU eprint}
}

%%% McPherson initial HHG
@article{mcpherson_hhg-initial_1987, 
  title = {Studies of multiphoton production of vacuum-ultraviolet radiation in the rare gases},
  author = {A. McPherson and G. Gibson and H. Jara and U. Johann and T. S. Luk and I. A. McIntyre and K. Boyer and C. K. Rhodes},
  journal = {J. Opt. Soc. Am. B},
  number = {4},
  pages = {595--601},
  volume = {4}, 
  year = {1987},
  doi = {10.1364/JOSAB.4.000595},
}

%%% Ferray HHG
@article{ferray_hhg_1988,
  title = {Multiple-harmonic conversion of 1064 nm radiation in rare gases},
  author = {M Ferray and A L'Huillier and X F Li and L A Lompre and G Mainfray and C Manus},
  journal = {J. Phys. B: At. Mol. Opt. Phys.},
  volume = {21},
  number = {3},
  pages = {L31},
  year = {1988},
  doi = {10.1088/0953-4075/21/3/001},
}







%%%%% Historic SFA papers %%%%%

%%% Keldysh
@article{keldysh_ionization_1965,
  title = {Ionization in the Field of a Strong Electromagnetic Wave },
  author = {L.V. Keldysh},
  journal = {Sov. Phys. {JETP}},
  volume = {20},
  number = {5},
  year = {1965},
  pages = {1307},
  note = { [\href{http://www.jetp.ac.ru/cgi-bin/e/index/r/47/5/p1945?a=list}{\textit{Zh. Eksp. Teor. Fiz.}, \textbf{47} no.~5, p.~1945 (1965)}]},
}

%%% Faisal
@article{faisal_multiple_1973,
  title = {Multiple absorption of laser photons by atoms},
  author = {Faisal, F. H. M.},
  journal = {J. Phys. B: At. Mol. Phys.},
  volume = {6},
  number = {4},
  year = {1973},
  pages = {L89},
  doi = {10.1088/0022-3700/6/4/011},
}

%%% Reiss
@article{reiss_effect_1980,
  title = {Effect of an intense electromagnetic field on a weakly bound system},
  author = {Reiss, Howard},
  journal = {Phys. Rev. A},
  volume = {22},
  number = {5},
  year = {1980},
  pages = {1786--1813},
  doi = {10.1103/PhysRevA.22.1786ssss},
}

%%% PPT
@article{perelomov_ionization_1966,
  title = {Ionization of Atoms in an Alternating Electric Field},
  author = {A.M. Perelomov and V.S. Popov and M.V. Terent'ev},
  journal = {Sov. Phys. JETP},
  volume = {23},
  year = {1966},
  number = {5},
  pages = {924},
  note = { [\href{http://www.jetp.ac.ru/cgi-bin/e/index/e/23/5/p924?a=list}{\textit{Zh. Eksp. Teor. Fiz.}, \textbf{50} no.~5, p.~1393 (1966)}]},
}
@article{perelomov_ionization-II_1967,
  title = {Ionization of Atoms in an Alternating Electric Field: {II}},
  author = {A.M. Perelomov and V.S. Popov and M.V. Terent'ev},
  journal = {Sov. Phys. JETP},
  volume = {24},
  number = {1},
  year = {1967},
  pages = {207},
  note = { [\href{http://www.jetp.ac.ru/cgi-bin/e/index/e/24/1/p207?a=list}{\textit{Zh. Eksp. Teor. Fiz.}, \textbf{51} no.~1, p.~309 (1967)}]},
}
@article{perelomov_ionization-III_1967,
  title = {Ionization of Atoms in an Alternating Electric Field. {III}},
  author = {A.M. Perelomov and V.S. Popov},
  journal = {Sov. Phys. JETP},
  volume = {25},
  number = {2},
  year = {1967},
  pages = {336},
  note = { [\href{http://www.jetp.ac.ru/cgi-bin/e/index/e/25/2/p336?a=list}{\textit{Zh. Eksp. Teor. Fiz.}, \textbf{52} no.~2, p.~514 (1967)}]},
}

%%% ADK
@article{ammosov-delone-krainov-1986,
  title = {Tunnel ionization of complex atoms and of atomic ions in an alternating electromagnetic field},
  author = {M.V. Ammosov and N.B. Delone and V.P. Krainov},
  journal = {Sov. Phys. JETP},
  volume = {64},
  number = {6},
  year = {1986},
  pages = {1191},
  note = { [\href{http://www.jetp.ac.ru/cgi-bin/e/index/r/91/6/p2008?a=list}{\textit{Zh. Eksp. Teor. Fiz.}, \textbf{91} no.~6, p.~2008 (1986)}]},
}

%%% MO-ADK
@article{tong_mo-adk_2002,
  title = {Theory of molecular tunneling ionization},
  author = {Tong, X. M. and Zhao, Z. X. and Lin, C. D.},
  journal = {Phys. Rev. A},
  volume = {66},
  number = {3},
  pages = {033402},
  year = {2002},
  doi = {10.1103/PhysRevA.66.033402},
  eprint = {https://www.phys.ksu.edu/personal/cdlin/articles/cdl/j249.pdf},
  archive = {KSU eprint},
}










%%%%% Sundry strong-field ionization %%%%%


%%% ATI reviews
@article{ATIreview,
  title = {{A}bove {T}hreshold {I}onization},
  author = {Eberly, Joseph H and Javanainen, Juka and Rz{\c{a}}{\.z}ewski, Kazimierz},
  journal = {Phys. Rep.},
  volume = {204},
  number = {5},
  pages = {331--383},
  year = {1991},
  doi = {10.1016/0370-1573(91)90131-5}
}


%%% Salieres quantum orbits
@article{salieres_quantum_orbits,
  title={Feynman's path-integral approach for intense-laser-atom interactions},
  author={Sali{\`e}res, Pascal and Carr{\'e}, B and Le D{\'e}roff, L and Grasbon, F and Paulus, GG and Walther, H and Kopold, R and Becker, W and Milo{\v{s}}evi{\'c}, DB and Sanpera, A and Lewenstein, M},
  journal={Science},
  volume={292},
  number={5518},
  pages={902--905},
  year={2001},
  publisher={American Association for the Advancement of Science},
  doi={10.1126/science.108836}
}


%%% Ponteromotive shift
@article{muller_ponderomotive-shift_1983,
  author = {H G Muller and A Tip and M J van der Wiel},
  title = {Ponderomotive force and {AC} {S}tark shift in multiphoton ionisation},
  journal = {J. Phys. B: At. Mol. Phys.},
  volume = {16},
  number = {22},
  pages = {L679},
  year = {1983},
  doi = {10.1088/0022-3700/16/22/001}
}


%%% For F(\cos(\theta),\sin(\theta)\cos(\phi)) angular wavefunction
@article{murray_tunnel_ionization_2011,
  title = {Tunnel Ionization of Molecules and Orbital Imaging},
  author = {Murray, Ryan and Spanner, Michael and Patchkovskii, Serguei and Ivanov, Misha Yu.},
  journal = {Phys. Rev. Lett.},
  volume = {106},
  number = {17},
  pages = {173001},
  numpages = {4},
  year = {2011},
  doi = {10.1103/PhysRevLett.106.173001},
}

%%% Misha & Ryan Murray, partial Fourier transform
@article{murray_Partial_Fourier_transform_2010,
  title = {Partial {F}ourier-transform approach to tunnel ionization:\ Atomic systems},
  author = {Murray, Ryan and Liu, Wing-Ki and Ivanov, Misha Yu.},
  journal = {Phys. Rev. A},
  volume = {81},
  number = {2},
  pages = {023413},
  numpages = {6},
  year = {2010},
  doi = {10.1103/PhysRevA.81.023413},
}

%%% Misha anatomy of strong-field ionization
@article{ivanov_anatomy_2005,
  title = {Anatomy of strong field ionization},
  author = {Ivanov, Misha Yu and Spanner, Michael and Smirnova, Olga},
  journal = {J. Mod. Opt.},
  volume = {52},
  number = {2-3},
  pages = {165-184},
  year = {2005},
  doi = {10.1080/0950034042000275360}
}

%%% Ingo & Olga spin polarization
@article{barth_spin-polarized_2013,
  title = {Spin-polarized electrons produced by strong-field ionization},
  author = {Barth, Ingo and Smirnova, Olga},
  journal = {Phys. Rev. A},
  volume = {88},
  number = {1},
  pages = {013401},
  year = {2013},
  doi = {10.1103/PhysRevA.88.013401},
  eprint = {http://arxiv.org/abs/1212.2895},
  archive = {arXiv:1212.2895},
}
@article{barth_spin-polarized_2012,
  title = {Nonadiabatic tunneling in circularly polarized laser fields: Physical picture and calculations},
  author = {Barth, Ingo and Smirnova, Olga},
  journal = {Phys. Rev. A},
  volume = {84},
  number = {6},
  pages = {063415},
  year = {2011},
  doi = {10.1103/PhysRevA.84.063415},
}


%%% Sample NSDI paper
@article{walker_nsdi_1994,
  title = {Precision Measurement of Strong Field Double Ionization of Helium},
  author = {Walker, B. and Sheehy, B. and DiMauro, L. F. and Agostini, P. and Schafer, K. J. and Kulander, K. C.},
  journal = {Phys. Rev. Lett.},
  volume = {73},
  number = {9},
  pages = {1227--1230},
  year = {1994},
  doi = {10.1103/PhysRevLett.73.1227},
  eprint = {https://www.physics.ohio-state.edu/~dimauro/Publications/DiMauro/1994.Precision.Walker.pdf},
  archive = {OSU eprint},
}

%%% Alex Galstyan SFA
@article{galstyan_sfa-reformulation_2016,
  title = {Reformulation of the strong-field approximation for light-matter interactions},
  author = {Galstyan, A. and Chuluunbaatar, O. and Hamido, A. and Popov, Yu. V. and Mota-Furtado, F. and O'Mahony, P. F. and Janssens, N. and Catoire, F. and Piraux, B.},
  journal = {Phys. Rev. A},
  volume = {93},
  number = {2},
  pages = {023422},
  year = {2016},
  doi = {10.1103/PhysRevA.93.023422},
  eprint = {http://arxiv.org/abs/1512.00681},
  archive = {arXiv:1512.00681},
}



%%% Sundry strong-field complex trajectories
@article{milosevic_quantum-orbit_2006,
  title = {Quantum-orbit theory of high-order atomic processes in intense laser fields},
  author = {D. B. Milo\v{s}evi\'{c} and D. Bauer and W. Becker},
  journal = {J. Mod. Opt.},
  volume = {53},
  number = {1-2},
  pages = {125-134},
  year = {2006},
  doi = {10.1080/09500340500186099},
}
@article{kopold_quantum-orbits_2002,
  title = {Quantum orbits: a space-time picture of intense-laser-induced processes in atoms},
  author = {R Kopold and W Becker and D B Milo\v{s}evi\'{c}},
  journal = {J. Mod. Opt.},
  volume = {49},
  number = {12},
  pages = {1987-1999},
  year = {2002},
  doi = {10.1080/09500340210140731},
}




%%% CCSFA
@article{CCSFA_initial_short,
  title = {Coulomb-corrected quantum trajectories in strong-field ionization},
  author = {Popruzhenko, S. V. and Paulus, G. G. and Bauer, D.},
  journal = {Phys. Rev. A},
  volume = {77},
  number = {5},
  pages = {053409},
  numpages = {7},
  year = {2008},
  doi = {10.1103/PhysRevA.77.053409},
}
@article{CCSFA_initial_full,
  title = {Strong field approximation for systems with {C}oulomb interaction},
  author = {Popruzhenko, S.V. and Bauer, D.},
  journal = {J. of Mod. Opt.},
  volume = {55},
  number = {16},
  year = {2008},
  pages = {2573--2589},
  doi = {10.1080/09500340802161881},
  eprint = {http://arxiv.org/abs/0803.1972},
  archive = {arXiv:0803.1972},
}
@article{popruzhenko_ccsfa-arbitrary-frequency_2008,
  title = {Strong Field Ionization Rate for Arbitrary Laser Frequencies},
  author = {Popruzhenko, S. V. and Mur, V. D. and Popov, V. S. and Bauer, D.},
  journal = {Phys. Rev. Lett.},
  volume = {101},
  number = {19},
  pages = {193003},
  year = {2008},
  doi = {10.1103/PhysRevLett.101.193003},
  eprint = {http://arxiv.org/abs/0807.2226},
  archive = {arXiv:0807.2226},
}
@article{popruzhenko_multiphoton_2009,
  title = {Multiphoton Ionization of Atoms and Ions by High-Intensity {X}-Ray Lasers},
  author = {S V Popruzhenko and V D Mur and V S Popov and D Bauer},
  journal = {J. Exp. Theor. Phys.},
  volume = {108},
  number = {6},
  pages = {947--962},
  year = {2009},
  doi = {10.1134/S1063776109060053},
  note = {[\emph{Zh. {\'E}ksp. Teor.  Fiz.} \textbf{135} no. 6 (2009), pp. 1092-1108]}
}

@article{TCSFA_sub_barrier,
  title = {Sub-barrier {C}oulomb effects on the interference pattern in tunneling-ionization photoelectron spectra},
  author = {Yan, Tian-Min and Bauer, D.},
  journal = {Phys. Rev. A},
  volume = {86},
  number = {5},
  pages = {053403},
  numpages = {9},
  year = {2012},
  doi = {10.1103/PhysRevA.86.053403},
  eprint = {http://arxiv.org/abs/1209.0704},
  archive = {arXiv:1209.0704},
}

%%% Coulomb-Volkov Approximation
@article{jain_coulomb-volkov_1978,
  title = {Compton scattering in the presence of coherent electromagnetic radiation},
  author = {Jain, Manoj and Tzoar, Narkis},
  journal = {Phys. Rev. A},
  volume = {18},
  number = {2},
  pages = {538--545},
  year = {1978},
  doi = {10.1103/PhysRevA.18.538},
}
@article{cavaliere_coulomb-volkov_1980,
  title = {Particle-atom ionising collisions in the presence of a laser radiation field},
  author = {P Cavaliere and G Ferrante and C Leone},
  journal = {J. Phys. B: At. Mol. Phys.},
  volume = {13},
  year = {1980},
  number = {22},
  pages = {4495},
  doi = {10.1088/0022-3700/13/22/021}
}
@article{arbo_coulomb-volkov_2008,
  title = {Coulomb-{Volkov} approximation for near-threshold ionization by short laser pulses},
  author = {Arb\'o, Diego G. and Miraglia, Jorge E. and Gravielle, María Silvia and Schiessl, Klaus and Persson, Emil and Burgd\"orfer, Joachim},
  journal = {Phys. Rev. A},
  volume = {77},
  issue = {1},
  pages = {013401},
  year = {2008},
  doi = {10.1103/PhysRevA.77.013401},
  eprint = {http://www.iafe.uba.ar/dinamicacuanticamateria/paper2008/pra77-013401.pdf},
  archive = {UBA eprint},
}



%%% TDSE
@incollection{scrinzi_TDSE_chapter,
  author = {A Scrinzi},
  title = {Time-Dependent {Schrödinger} Equation},
  booktitle = {Attosecond and {XUV} Physics: Ultrafast Dynamics and Spectroscopy},
  publisher = {Wiley-{VCH}},
  address = {Weinheim},
  year = {2014},
  editor = {T Schultz and M Vrak\-king},
  pages = {257--292},
}
%  chapter = {8},
@article{patchkovskii_SCID_2016,
  title = {Simple, accurate, and efficient implementation of 1-electron atomic time-dependent {Schrödinger} equation in spherical coordinates},
  author = {Serguei Patchkovskii and H.G. Muller},
  journal = {Comput. Phys. Commun.},
  volume = {199},
  number = {},
  pages = {153 -- 169},
  year = {2016},
  doi = {10.1016/j.cpc.2015.10.014},
}


%%% ATI quantum correction to cutoff
@article{HATI_quantum_correction,
  title={High-order above-threshold ionization in a laser field:\ Influence of the ionization potential on the high-energy cutoff},
  author={Busulad\ifmmode \check{z}\else \v{z}\fi{}i\ifmmode \acute{c}\else \'{c}\fi{}, M. and Gazibegovi\ifmmode \acute{c}\else \'{c}\fi{}-Busulad\ifmmode \check{z}\else \v{z}\fi{}i\ifmmode \acute{c}\else \'{c}\fi{}, A. and Milo\ifmmode \check{s}\else \v{s}\fi{}e{\-}vi\ifmmode \acute{c}\else \'{c}\fi{}, D. B.},
  year={2006},
  journal={Laser Physics},
  volume={16},
  number={2},
  doi={10.1134/S1054660X06020149},
  pages={289-293},
}
@article{HATI_quantum_correction_2,
  title = {Analytic formulas for above-threshold ionization or detachment plateau spectra},
  author = {Frolov, M. V. and Manakov, N. L. and Starace, Anthony F.},
  journal = {Phys. Rev. A},
  volume = {79},
  number = {3},
  pages = {033406},
  numpages = {17},
  year = {2009},
  month = {Mar},
  doi = {10.1103/PhysRevA.79.033406},
  eprint = {http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1166&context=physicsstarace},
  archive = {UNL eprint}
}
@article{HATI_quantum_correction_3,
  title = {Tunneling-induced shift of the cutoff law for high-order above-threshold ionization},
  author = {Lai, X. Y. and Quan, W. and Liu, X.},
  journal = {Phys. Rev. A},
  volume = {84},
  number = {2},
  pages = {025401},
  year = {2011},
  doi = {10.1103/PhysRevA.84.025401},
}


%%% ISFA
@article{improvedSFA,
  title = {Coulomb and rescattering effects in {A}bove-{T}hreshold {I}onization},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, Dejan B. and Ehlotzky, Fritz},
  journal = {Phys. Rev. A},
  volume = {58},
  number = {4},
  pages = {3124--3127},
  year = {1998},
  doi = {10.1103/PhysRevA.58.3124},
}
@article{goreslavskii_ISFA-standard_1998,
  title = {Simple quantum theory of the high-energy above-threshold ionization spectrum in the tunneling regime},
  author = {S.P. Goreslavskii and S.V. Popruzhenko},
  journal = {Phys. Lett. A},
  volume = {249},
  number = {5--6},
  year = {1998},
  pages = {477--482},
  doi = {10.1016/S0375-9601(98)00679-3},
}
@article{milosevic_ISFA-standard_2007,
  title = {Intensity-dependent enhancements in high-order above-threshold ionization},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D. B. and Hasovi\ifmmode \acute{c}\else \'{c}\fi{}, E. and Busulad\ifmmode \check{z}\else \v{z}\fi{}i\ifmmode \acute{c}\else \'{c}\fi{}, M. and Gazibegovi\ifmmode \acute{c}\else \'{c}\fi{}-Busulad\ifmmode \check{z}\else \v{z}\fi{}i\ifmmode \acute{c}\else \'{c}\fi{}, A. and Becker, W.},
  journal = {Phys. Rev. A},
  volume = {76},
  number = {5},
  pages = {053410},
  year = {2007},
  doi = {10.1103/PhysRevA.76.053410},
}


%%% Fifty years of Keldysh theory
@article{dimauro_keldysh-plus-50_2014,
  author = {Louis DiMauro and Mikhail Frolov and Kenichi L Ishikawa and Misha Ivanov},
  title = {50 years of optical tunneling},
  journal = {J. Phys. B: At. Mol. Opt. Phys.},
  volume = {47},
  number = {20},
  pages = {200301},
  year = {2014},
  doi = {10.1088/0953-4075/47/20/200301},
  eprint = {http://dimauro.osu.edu/publications/2014.Tunneling.pdf},
  archive = {OSU eprint}
}

%%% Attoclock experiment
@article{pfeiffer_attoclock_2012,
  title = {Attoclock reveals natural coordinates of the laser-induced tunnelling current flow in atoms},
  author = {Adrian N. Pfeiffer and Claudio Cirelli and Mathias Smolarski and Darko Dimitrovski and Mahmoud Abu-samha and Lars Bojer Madsen and Ursula Keller},
  journal = {Nature Phys.},
  volume = {8},
  number ={},
  year = {2012},
  pages = {76--80},
  doi = {10.1038/nphys2125},
  eprint = {https://www.ethz.ch/content/dam/ethz/special-interest/phys/quantum-electronics/ultrafast-laser-physics-dam/publications_awards/publications/2012/322__NatPhys_8__76__2012__Attoclock_TIPIS_tunnel_geometry.pdf},
  archive = {ETH eprint},
}


%%% Complex scaling
@article{reinhardt_complex-coords_1982,
  title = {Complex coordinates in the theory of atomic and molecular structure and dynamics},
  author = {W P Reinhardt},
  journal = {Ann. Rev. Phys. Chem.},
  volume = {33},
  year = {1982},
  number = {},
  pages = {223-255},
  doi = {10.1146/annurev.pc.33.100182.001255},
}
%  eprint = {http://www.chem.ucla.edu/~akg/annurev.pc.33.100182.001255.pdf},
%  archive = {UCLA eprint},
%%% t-SURFF
@article{scrinzi_tsurff_2012,
  title = {{$t$-SURFF}: fully differential two-electron photo-emission spectra},
  author = {A Scrinzi},
  journal = {New J. Phys.},
  volume = {14},
  number = {},
  pages = {085008},
  year = {2012},
  doi = {10.1088/1367-2630/14/8/085008},
  eprint = {https://arxiv.org/abs/1202.3590},
  archive = {arXiv:1202.3590},
}



%%% Frolov, Manakov, Starace effective range
@article{manakov_decay_1980,
  title = {Decay of a weakly bound level in a monochromatic field},
  author = {N L Manakov and A G Fainshtein},
  journal = {Sov. Phys. JETP},
  volume = {52},
  number = {3},
  pages = {382--388},
  year = {1980},
  note = { [\href{http://www.jetp.ac.ru/cgi-bin/e/index/r/79/3/p751?a=list}{\textit{Zh. Eksp. Teor. Fiz.}, \textbf{79} no.~3, p.~751 (1980)}]},
}
@article{demkov_loosely-bound_1981,
  title = {Loosely bound particle with nonzero orbital angular momentum in an electric or magnetic field},
  author = {{Yu} N Demkov and G F Drukarev},
  journal = {Sov. Phys. JETP},
  volume = {54},
  number = {4},
  pages = {650--656},
  year = {1981},
  note = { [\href{http://www.jetp.ac.ru/cgi-bin/e/index/e/54/4/p650?a=list}{\textit{Zh. Eksp. Teor. Fiz.}, \textbf{81} no.~4, p.~1218 (1981)}]},
}
@article{andreev_weakly-bound_1984,
  title = {Spectrum of weakly bound states of a particle in external electric fields},
  author = {S.P. Andreev and B.M. Karnakov and V.D. Mur and V.A. Polunin},
  journal = {Sov. Phys. JETP},
  volume = {59},
  number = {3},
  pages = {506-514},
  year = {1984},
  note = { [\href{http://www.jetp.ac.ru/cgi-bin/e/index/e/59/3/p506?a=list}{\textit{Zh. Eksp. Teor. Fiz.}, \textbf{86} no.~3, p.~866 (1984)}]},
}

@article{frolov_model-independent_2003,
  title = {Model-Independent Quantum Approach for Intense Laser Detachment of a Weakly Bound Electron},
  author = {Frolov, M. V. and Manakov, N. L. and Pronin, E. A. and Starace, Anthony F.},
  journal = {Phys. Rev. Lett.},
  volume = {91},
  number = {5},
  pages = {053003},
  year = {2003},
  doi = {10.1103/PhysRevLett.91.053003},
  eprint = {http://digitalcommons.unl.edu/physicsstarace/85/},
  archive = {UNL eprint},
}

@article{frolov_effective-range-theory_2008,
  title = {Effective-range theory for an electron in a short-range potential and a laser field},
  author = {Frolov, M. V. and Manakov, N. L. and Starace, Anthony F.},
  journal = {Phys. Rev. A},
  volume = {78},
  number = {6},
  pages = {063418},
  year = {2008},
  doi = {10.1103/PhysRevA.78.063418},
  eprint = {http://digitalcommons.unl.edu/physicsstarace/164/},
  archive = {UNL eprint},
}



%%%%%%%%%%%%%% --------------- %%%%%%%%%%%%%%















%%%%%%%%%%%%%% General HHG %%%%%%%%%%%%%%

%%% HHG reviews
@incollection{HHGTutorial,
  author = {M Ivanov and O Smirnova},
  title = {Multielectron high harmonic generation: simple man on a complex plane},
  booktitle = {Attosecond and {XUV} Physics: Ultrafast Dynamics and Spectroscopy},
  publisher = {Wiley-{VCH}},
  address = {Weinheim},
  year = {2014},
  editor = {T Schultz and M Vrakking},
  pages = {201--256},
  eprint = {http://arxiv.org/abs/1304.2413},
  archive = {arXiv:\discretionary{}{}{}1304.2413}
}%  chapter = {7},
@article{JoachainHHGReview,
  title = {High-Intensity Laser-Atom Physics},
  author = {C.J. Joachain and M. D{\"o}rr and N. Kylstra},
  journal = {Adv. At., Mol., Opt. Phys.},
  year = {2000},
  volume = {42},
  pages = {225--286},
  doi = {10.1016/S1049-250X(08)60188-3},
  eprint = {http://www.ulb.ac.be/sciences/physath/publi/advan_10.ps.gz},
  archive = {ULB e-print}
}
@article{corkum_hhg-review_2007,
  title = {Attosecond science},
  author = {P B Corkum and F Krausz},
  journal = {Nature Phys.},
  volume = {3},
  year = {2007},
  number = {6},
  pages = {381--387},
  doi = {10.1038/nphys620}
}
@incollection{kohler_chapter_2012,
  title = {{Frontiers} of {Atomic} {High}-{Har{\-}mo{\-}nic} {Generation}},
  author = {Kohler, M. C. and Pfeifer, T. and Hatsagortsyan, K. Z. and Keitel, C. H.},
  booktitle = {Advances {In} {Atomic}, {Molecular}, and {Optical} {Physics}},
  volume = {61},
  publisher = {Academic Press},
  editor = {Paul Berman and Ennio Arimondo and Chun Lin},
  year = {2012},
  pages = {159--208},
  note = {\href{https://arxiv.org/abs/1201.5094}{arXiv:1201.5094}}
}
@article{krausz-ivanov_attosecond-review_2009,
  title = {Attosecond physics},
  author = {Krausz, Ferenc and Ivanov, Misha},
  journal = {Rev. Mod. Phys.},
  volume = {81},
  number = {1},
  pages = {163--234},
  year = {2009},
  doi = {10.1103/RevModPhys.81.163},
}




%%% Historic HHG papers
@article{LewensteinHHG,
  title = {Theory of high-harmonic generation by low-frequency laser fields},
  author = {Lewenstein, M. and Balcou, Ph. and Ivanov, M. Yu. and {A. L'Huil\-lier} and Corkum, P. B.},
  journal = {Phys. Rev. A},
  volume = {49},
  number = {3},
  pages = {2117--2132},
  numpages = {0},
  year = {1994},
  month = {Mar},
  doi = {10.1103/PhysRevA.49.2117}
}

@article{corkum_plasma-perspective_1993,
  title = {Plasma perspective on strong field multiphoton ionization},
  author = {Corkum, P. B.},
  journal = {Phys. Rev. Lett.},
  volume = {71},
  number = {13},
  pages = {1994--1997},
  year = {1993},
  doi = {10.1103/PhysRevLett.71.1994},
}



%%%% HHG conservation laws %%%%
%%% Energy
@article{EnergyConservationExperiment,
  title = {High-order harmonic emission from mixed fields},
  author = {Perry, Michael D. and Crane, John K.},
  journal = {Phys. Rev. A},
  volume = {48},
  number = {6},
  pages = {R4051--R4054},
  numpages = {0},
  year = {1993},
  month = {Dec},
  doi = {10.1103/PhysRevA.48.R4051}
}

%%% Momentum
@article{MomentumConservationExperiment,
  title = {Ultrahigh-Order Wave Mixing in Noncollinear High Harmonic Generation},
  author = {Bertrand, J. B. and W{\"o}rner, H. J. and Bandulet, H.-C. and Bisson, {\'E}. and Spanner, M. and Kieffer, J.-C. and Villeneuve, D. M. and Corkum, P. B.},
  journal = {Phys. Rev. Lett.},
  volume = {106},
  number = {2},
  pages = {023001},
  numpages = {4},
  year = {2011},
  month = {Jan},
  doi = {10.1103/PhysRevLett.106.023001}
}

%%% Angular momentum
@article{OAMConservationExperiment,
  title = {Strong-field physics with singular light beams},
  author = {M. Z{\"u}rch and C. Kern and P. Hansinger and A. Dreischuh and {Ch}. Spielmann},
  journal = {Nature Phys.},
  volume = {8},
  number = {10},
  pages = {743--746},
  year = {2012},
  doi = {10.1038/nphys2397}
}
%%%%% ------ %%%%%


%%% HHG dependence on ellipticity
@article{moller_hhg-elliptical-fields_2012,
  title = {Dependence of high-order-harmonic-generation yield on driving-laser ellipticity},
  author = {M\"oller, Max and Cheng, Yan and Khan, Sabih D. and Zhao, Baozhen and Zhao, Kun and Chini, Michael and Paulus, Gerhard G. and Chang, Zenghu},
  journal = {Phys. Rev. A},
  volume = {86},
  number = {1},
  pages = {011401},
  year = {2012},
  doi = {10.1103/PhysRevA.86.011401},
  eprint = {http://www.creol.ucf.edu/Research/Publications/5945.pdf},
  archive = {UCF eprint}
}
@article{li_quantum-orbit-ellipticity-hhg_2013,
  title = {Quantum-orbit analysis for yield and ellipticity of high order harmonic generation with elliptically polarized laser field},
  author = {Yang Li and Xiaosong Zhu and Qingbin Zhang and Meiyan Qin and Peixiang Lu},
  journal = {Opt. Express},
  number = {4},
  pages = {4896--4907},
  volume = {21},
  year = {2013},
  doi = {10.1364/OE.21.004896},
}

%%% Bound states
@article{schoun_cooper-tdse_2014,
  title = {Attosecond Pulse Shaping around a {Cooper} Minimum},
  author = {Schoun, S. B. and Chirla, R. and Wheeler, J. and Roedig, C. and Agostini, P. and DiMauro, L. F. and Schafer, K. J. and Gaarde, M. B.},
  journal = {Phys. Rev. Lett.},
  volume = {112},
  number = {15},
  pages = {153001},
  year = {2014},
  doi = {10.1103/PhysRevLett.112.153001},
  eprint = {http://www.dimauro.osu.edu/publications/2014.Attosecond.pdf},
  archive = {OSU eprint},
}
@article{yanjun_bound-state-hhg_2011,
  title = {Dynamic of rescattering-electron wave packets in strong and short-wavelength laser fields: Roles of {Coulomb} potential and excited states},
  author = {Chen, Yanjun},
  journal = {Phys. Rev. A},
  volume = {84},
  number = {4},
  pages = {043423},
  year = {2011},
  doi = {10.1103/PhysRevA.84.043423},
}


%%% SFA+
@article{perez-hernandez_sfa-plus_2009,
  title = {Harmonic generation beyond the {Strong-Field Approximation}: the physics behind the short-wave-infrared scaling laws}, 
  author = {J. A. P\'{e}rez-Hern\'{a}ndez and L. Roso and L. Plaja}, 
  journal = {Opt. Express}, 
  number = {12}, 
  pages = {9891--9903}, 
  volume = {17}, 
  year = {2009},
  doi = {10.1364/OE.17.009891},
}

%%% Chipperfield perfect wave
@article{chipperfield_ideal_2009,
  title = {Ideal waveform to generate the maximum possible electron recollision energy for any given oscillation period},
  author = {Chipperfield, LE and Robinson, JS and Tisch, JWG and Marangos, JP},
  journal = {Phys. Rev. Lett.},
  volume = {102},
  number = {6},
  pages = {63003},
  year = {2009},
  doi = {10.1103/PhysRevLett.102.063003},
}

%%% Hoffmann orthogonal two-colour
@article{brugnera_hhg-orthogonal_2011,
  title = {Trajectory Selection in High Harmonic Generation by Controlling the Phase between Orthogonal Two-Color Fields},
  author = {Brugnera, Leonardo and Hoffmann, David J. and Siegel, Thomas and Frank, Felix and Za\"{\i}r, Amelle and Tisch, John W. G. and Marangos, Jonathan P.},
  journal = {Phys. Rev. Lett.},
  volume = {107},
  number = {15},
  pages = {153902},
  year = {2011},
  doi = {10.1103/PhysRevLett.107.153902},
  eprint = {https://spiral.imperial.ac.uk/handle/10044/1/18903},
  archive = {Imperial College eprint}
}

%%% HHG via full-dimensionality TDSE
@article{spanner_full-dimensionality_2012,
  title = {Strong-field ionization and high-order-harmonic generation during polyatomic molecular dynamics of {N${}_{2}$O${}_{4}$}},
  author = {Spanner, Michael and Mikosch, Jochen and Boguslavskiy, Andrey E. and Murnane, Margaret M. and Stolow, Albert and Patchkovskii, Serguei},
  journal = {Phys. Rev. A},
  volume = {85},
  number = {3},
  pages = {033426},
  year = {2012},
  doi = {10.1103/PhysRevA.85.033426},
  eprint = {http://jila.colorado.edu/kmgroup/publications/pubinfo/strong-field-ionization-and-high-harmonic-generation-during-polyatomic},
  archive = {JILA eprint},
}
%%%http://faculty.chem.queensu.ca/people/faculty/stolow/Publications/PDF_Publications/2012/N2O4_Theory_PRA2012.pdf

%%% Smirnova multielectron via SFA
@article{smirnova_multielectron-hhg_2009,
  title = {High harmonic interferometry of multi-electron dynamics in molecules},
  author = {Olga Smirnova and Yann Mairesse and Serguei Patchkovskii and Nirit Dudovich and David Villeneuve and Paul Corkum and Misha Yu. Ivanov},
  journal = {Nature},
  volume = {460},
  number = {},
  pages = {972--977},
  year = {2009},
  doi = {10.1038/nature08253},
  eprint = {http://www.attoscience.ca/pdf/Smirnova_Nature_2009.pdf},
  archive = {NRC/uOttawa eprint},
}


%%% HHG selection rules
@article{SelectionRulesInHHG,
  title = {Selection Rules for the High Harmonic Generation Spectra},
  author = {Alon, Ofir E. and Averbukh, Vitali and Moiseyev, Nimrod},
  journal = {Phys. Rev. Lett.},
  volume = {80},
  number = {17},
  pages = {3743--3746},
  year = {1998},
  month = {Apr},
  doi = {10.1103/PhysRevLett.80.3743}
}
@article{averbukh_stability_2002,
  title = {Stability and instability of dipole selection rules for atomic high-order-harmonic-generation spectra in two-beam setups},
  author = {Averbukh, Vitali and Alon, Ofir E. and Moiseyev, Nimrod},
  journal = {Phys. Rev. A},
  volume = {65},
  number = {6},
  year = {2002},
  pages = {063402},
  doi = {10.1103/PhysRevA.65.063402},
  eprint = {http://tx.technion.ac.il/~nimrodhp/publications/ps/2002/va_oa_nm2002.pdf},
  archive = {Technion e-print}
}



%%% Propagation simulations
@article{jin_hhg-propagation_2011,
  title = {Medium propagation effects in high-order harmonic generation of {Ar} and {${\mathrm{N}}_{2}$}},
  author = {Jin, Cheng and Le, Anh-Thu and Lin, C. D.},
  journal = {Phys. Rev. A},
  volume = {83},
  number = {2},
  pages = {023411},
  year = {2011},
  doi = {10.1103/PhysRevA.83.023411},
  eprint = {http://arxiv.org/abs/1012.2302},
  archive = {arXiv:1012.2302},
}


%%% Uniform approximation
@article{milosevic_long-quantum-orbits_2002,
  title = {Role of long quantum orbits in high-order harmonic generation},
  author = {Milo\v{s}evi\'c, D. B. and Becker, W.},
  journal = {Phys. Rev. A},
  volume = {66},
  number = {6},
  pages = {063417},
  numpages = {14},
  year = {2002},
  doi = {10.1103/PhysRevA.66.063417},
}
@article{figueira_uniform-approximation_2002,
  title = {High-order above-threshold ionization: The uniform approximation and the effect of the binding potential},
  author = {Figueira de Morisson Faria, C. and Schomerus, H. and Becker, W.},
  journal = {Phys. Rev. A},
  volume = {66},
  number = {4},
  pages = {043413},
  numpages = {14},
  year = {2002},
  doi = {10.1103/PhysRevA.66.043413},
  eprint = {http://discovery.ucl.ac.uk/id/eprint/9503},
  archive = {UCL eprint},
}



%%%%% Landmark HHG experiments %%%%%

%%% Popmintchev cut-off record
@article{popmintchev_record_2012,
  author = {Popmintchev, Tenio and Chen, Ming-Chang and Popmintchev, Dimitar and Arpin, Paul and Brown, Susannah and Ališauskas, Skirmantas and Andriukaitis, Giedrius and Balčiunas, Tadas and Mücke, Oliver D. and Pugzlys, Audrius and Baltuška, Andrius and Shim, Bonggu and Schrauth, Samuel E. and Gaeta, Alexander and Hernández-García, Carlos and Plaja, Luis and Becker, Andreas and Jaron-Becker, Agnieszka and Murnane, Margaret M. and Kapteyn, Henry C.},
  title = {Bright Coherent Ultrahigh Harmonics in the {keV} {X}-ray Regime from Mid-Infrared Femtosecond Lasers},
  journal = {Science},
  volume = {336},
  number = {6086},
  pages = {1287-1291},
  year = {2012},
  doi = {10.1126/science.1218497},
  eprint = {http://jila.colorado.edu/kmgroup/publications/pubinfo/bright-coherent-ultrahigh-harmonics-kev-x-ray-regime-mid-infrared-femtosecond},
  archive = {JILA e-print}
}

@article{popmintchev_phase-matching_2009,
  title = {Phase matching of high harmonic generation in the soft and hard {X}-ray regions of the spectrum},
  author = {Tenio Popmintchev and Ming-Chang Chen and Alon Bahabad and Michael Gerrity and Pavel Sidorenko and Oren Cohen and Ivan P. Christov and Margaret M. Murnane and Henry C. Kapteyn},
  journal = {P. Natl. Acad. Sci. USA},
  volume = {106},
  number = {26},
  pages = {10516--10521},
  year = {2009},
  doi = {10.1073/pnas.0903748106},
  eprint = {http://jilawww.colorado.edu/kmgroup/publications/pubinfo/phase-matching-high-harmonic-generation-soft-and-hard-x-ray-regions-spectrum},
  archive = {JILA eprint},
}

%%% Calegari phenylalanine paper
@article {calegari_phenylalanine_2014,
  title = {Ultrafast electron dynamics in phenylalanine initiated by attosecond pulses},
  author = {Calegari, F. and Ayuso, D. and Trabattoni, A. and Belshaw, L. and De Camillis, S. and Anumula, S. and Frassetto, F. and Poletto, L. and Palacios, A. and Decleva, P. and Greenwood, J. B. and Mart{\'\i}n, F. and Nisoli, M.},
  journal = {Science},
  volume = {346},
  number = {6207},
  pages = {336--339},
  year = {2014},
  doi = {10.1126/science.1254061},
}




%%%%% Other HHG codes %%%%%

%%% Rhyno
@MastersThesis{rhyno_thesis,
  author  =  {Torsten Leitner},
  title  =  {High Order Harmonic Generation as a possible Seed Source for the BESSY Free Electron Laser},
  type = {{Diplom} thesis},
  school  =  {Humboldt-Universität zu Berlin},
  year  =  {2007},
  url = {https://www.helmholtz-berlin.de/media/media/grossgeraete/beschleunigerphysik/fel/rhyno/torsten_leitner_diplomarbeit.pdf},
}
@misc{rhyno_code,
  author = {T. Leitner},
  title = {Rhyno},
  year = {2008},
  howpublished = {Available at \url{https://www.helmholtz-berlin.de/forschung/oe/fg/beschleunigerphysik/gia-hbpb/hbpb-rhyno_en.html} from HZB},
}

%%% HHGmax
@MastersThesis{hhgmax_thesis,
  author  =  {M. Högner},
  title  =  {Optical High-Order Harmonic Generation in Gas Targets with Spatially Tailored Driving Fields},
  type = {{Master's} thesis},
  school  =  {Ludwig-Maximilians-Universität München},
  year  =  {2013},
  url = {http://www.attoworld.de/hhgmax/model.pdf},
}
@misc{hhgmax_code,
  author = {M. Högner},
  title = {{HHGmax}: Simulation Framework for High-Harmonic Generation},
  year = {2013-2016},
  howpublished = {Available at \url{http://www.attoworld.de/hhgmax/index.html} and \url{https://gitlab.com/mhoegner/HHGmax}},
}

%%% SLIMP
@article{slimp_paper,
  title = {{SLIMP}: Strong laser interaction model package for atoms and molecules},
  author = {Bin Zhang and Zengxiu Zhao},
  journal = {Comput. Phys. Commun.},
  volume = {192},
  number = {},
  pages = {330--341},
  year = {2015},
  doi = {10.1016/j.cpc.2015.02.031},
}

%%% ClassSTRONG
@article{ClassSTRONG_paper,
  title = {{ClassSTRONG}: Classical simulations of strong field processes.},
  author = {M.F. Ciappinaa and J.A. Pérez-Hernández and M. Lewenstein},
  journal = {Comput. Phys. Commun.},
  volume = {185},
  number = {1},
  pages = {398--406},
  year = {2014},
  doi = {10.1016/j.cpc.2013.09.009},
}





%%%%%%%%%%%%%% --------------- %%%%%%%%%%%%%%















%%%%%%%%%%%%%% General nonlinear optics %%%%%%%%%%%%%%

%%% General perturbative optics
@book{AgrawalFiberOptics,
  author = {Govind P. Agrawal},
  title = {Nonlinear Fiber Optics},
  publisher = { Academic Press},
  year = {1989},
  address = {Boston},
 }
@book{boyd_nonlinear-optics,
  author = {Boyd, Robert},
  title = {Nonlinear optics},
  publisher = {Academic Press},
  year = {2008},
  address = {Amsterdam Boston},
}

@article{VectorFourWaveMixing,
  author = {Qiang Lin and Govind P. Agrawal},
  journal = {J. Opt. Soc. Am. B},
  number = {6},
  pages = {1216--1224},
  publisher = {OSA},
  title = {Vector theory of four-wave mixing: polarization effects in fiber-optic parametric amplifiers},
  volume = {21},
  month = {Jun},
  year = {2004},
  doi = {10.1364/JOSAB.21.001216},
}

%%% Conservation laws in pertubative nonlinear optics
@article{BloembergenSecondHarmonic,
  title = {Second-Harmonic Light Generation in Crystals with Natural Optical Activity},
  author = {Simon, H. J. and Bloembergen, N.},
  journal = {Phys. Rev.},
  volume = {171},
  number = {3},
  pages = {1104--1114},
  numpages = {0},
  year = {1968},
  month = {Jul},
  doi = {10.1103/PhysRev.171.1104}
}

@article{BloembergenConservationLaws,
  title = {Conservation laws in nonlinear optics},
  author = {Bloembergen, N.},
  journal = {J. Opt. Soc. Am.},
  volume = {70},
  number = {12},
  month = {dec},
  year = {1980},
  pages = {1429},
  doi = {10.1364/JOSA.70.001429},
}

@article{SelectionRulesNonlinearOptics,
  title = {Selection Rules for Circularly Polarized Waves in Nonlinear Optics},
  author = {Tang, C. L. and Rabin, Herbert},
  journal = {Phys. Rev. B},
  volume = {3},
  number = {12},
  pages = {4025--4034},
  numpages = {0},
  year = {1971},
  month = {Jun},
  doi = {10.1103/PhysRevB.3.4025}
}

%%%%%%%%%%%%%% --------------- %%%%%%%%%%%%%%


















%%%%%%%%%%%%%% R-matrix stuff %%%%%%%%%%%%%%

%%%%%% R-matrix history %%%%%%%%
@article{Rmatrix_Wigner,
  title = {Resonance Reactions},
  author = {Wigner, Eugene P.},
  journal = {Phys. Rev.},
  volume = {70},
  number = {9-10},
  pages = {606--618},
  numpages = {0},
  year = {1946},
  doi = {10.1103/PhysRev.70.606},
}
@article{Rmatrix_nuclear_review,
  title = {R-Matrix Theory of Nuclear Reactions},
  author = {Lane, A. M. and Thomas, R. G.},
  journal = {Rev. Mod. Phys.},
  volume = {30},
  number = {2},
  pages = {257--353},
  numpages = {0},
  year = {1958},
  doi = {10.1103/RevModPhys.30.257},
}
@article{Rmatrix_molecular,
  title = {{$R$}-matrix theory of electron molecule scattering},
  author = {P G Burke and J Tennyson},
  journal = {Mol. Phys.},
  volume = {103},
  number = {18},
  pages = {2537--2548},
  year = {2005},
  doi = {10.1080/00268970500180105},
  eprint = {http://www.ucl.ac.uk/phys/amopp/people/jonathan_tennyson/papers/351.pdf},
  archive = {UCL eprint}
}
@article{Rmatrix_atomic,
  title = {Electron scattering by complex atoms},
  author = {P G Burke and A Hibbert and W D Robb},
  journal = {J. Phys. B:\ At. Mol. Phys.},
  volume = {4},
  year = {1971},
  number = {2},
  pages = {153--161},
  doi = {10.1088/0022-3700/4/2/002},
}
@article{Rmatrix_time_dependent,
  author = {L.R. Moore and M.A. Lysaght and L.A.A. Nikolopoulos and J.S. Parker and H.W. van der Hart and K.T. Taylor},
  title = {The {RMT} method for many-electron atomic systems in intense short-pulse laser light},
  journal = {J. Mod. Opt.},
  volume = {58},
  number = {13},
  pages = {1132-1140},
  year = {2011},
  doi = {10.1080/09500340.2011.559315},
}
@article{Rmatrix_numerical,
  title = {Time delay between photoemission from the {$2p$} and {$2s$} subshells of neon},
  author = {Moore, L. R. and Lysaght, M. A. and Parker, J. S. and van der Hart, H. W. and Taylor, K. T.},
  journal = {Phys. Rev. A},
  volume = {84},
  number = {6},
  pages = {061404},
  numpages = {4},
  year = {2011},
  doi = {10.1103/PhysRevA.84.061404},
  eprint = {http://arxiv.org/abs/1204.5872},
  archive = {arXiv:1204.5872}
}


%%%%%% R-matrix support %%%%%%%%

%%% Eikonal-Volkov stuff 
@article{eikonalVolkov_initial,
  title = {Analytical solutions for strong field-driven atomic and molecular one- and two-electron continua and applications to strong-field problems},
  author = {Smirnova, Olga and Spanner, Michael and Ivanov, Misha},
  journal = {Phys. Rev. A},
  volume = {77},
  number = {3},
  pages = {033407},
  numpages = {27},
  year = {2008},
  doi = {10.1103/PhysRevA.77.033407},
}
@article{eikonalVolkov_prelim,
  title = {Coulomb and polarization effects in sub-cycle dynamics of strong-field ionization},
  author = {Olga Smirnova and Michael Spanner and Misha Ivanov},
  journal = {J. Phys. B:\ At. Mol. Opt. Phys.},
  volume = {39},
  number = {13},
  pages = {S307},
  year = {2006},
  doi = {10.1088/0953-4075/39/13/S05}
}

%%% Original Volkov states
@article{bergou_volkov_sates_1980,
  title = {Wavefunctions of a free electron in an external field and their application in intense field interactions. {I}. {Non}-relativistic treatment},
  author = {Bergou, J.},
  journal = {J. Phys. A: Math. Gen.},
  year = {1980},
  volume = {13},
  number = {8},
  pages = {2817},
  doi = {10.1088/0305-4470/13/8/029},
}

%%% Bloch's L operator
@article{Bloch_L_operator_1957,
  title = {Une formulation unifiée de la théorie des réactions nucléaires},
  author = {Claude Bloch},
  journal = {Nucl. Phys.},
  year = {1957},
  volume = {4},
  pages = {503 -- 528},
  doi = {10.1016/0029-5582(87)90058-7},
}


%%%%%% MBI ARM papers %%%%%%%%
@article{ARM_initial,
  title = {Time-dependent analytical {$R$}-matrix approach for strong-field dynamics. {I}. {O}ne-electron systems},
  author = {Torlina, Lisa and Smirnova, Olga},
  journal = {Phys. Rev. A},
  volume = {86},
  number = {4},
  pages = {043408},
  numpages = {13},
  year = {2012},
  doi = {10.1103/PhysRevA.86.043408},
}
@article{ARM_initial_multielectron,
  title = {Time-dependent analytical {$R$}-matrix approach for strong-field dynamics. {II}. {M}any-electron systems},
  author = {Torlina, Lisa and Ivanov, Misha and Walters, Zachary B. and Smir{\-}no{\-}va, Olga},
  journal = {Phys. Rev. A},
  volume = {86},
  number = {4},
  pages = {043409},
  numpages = {12},
  year = {2012},
  doi = {10.1103/PhysRevA.86.043409},
}
@article{ARM_circular,
  title = {Nonadiabatic {C}oulomb effects in strong-field ionization in circularly polarized laser fields},
  author = {Kaushal, Jivesh and Smirnova, Olga},
  journal = {Phys. Rev. A},
  volume = {88},
  number = {1},
  pages = {013421},
  numpages = {20},
  year = {2013},
  doi = {10.1103/PhysRevA.88.013421},
  eprint = {http://arxiv.org/abs/1302.2609},
  archive = {arXiv:1302.2609},
}
@article{ARM_abinitio_verification,
  title = {{\textit{Ab initio}} verification of the analytical {$R$}-matrix theory for strong field ionization},
  author = {Lisa Torlina and Felipe Morales and H G Muller and Olga Smir{\-}no{\-}va},
  journal = {J. Phys. B:\ At. Mol. Opt. Phys.},
  volume = {47},
  number = {20},
  pages = {204021},
  doi = {10.1088/0953-4075/47/20/204021},
  year = {2014},
}
@article{ARM_trajectories,
  title = {Time-resolving electron-core dynamics during strong-field ionization in circularly polarized fields},
  author = {Torlina, Lisa and Kaushal, Jivesh and Smirnova, Olga},
  journal = {Phys. Rev. A},
  volume = {88},
  number = {5},
  pages = {053403},
  numpages = {8},
  year = {2013},
  doi = {10.1103/PhysRevA.88.053403},
  eprint = {http://arxiv.org/abs/1308.1348},
  archive = {arXiv:1308.1348},
}
@article{ARM_attoclock,
  title = {Interpreting Attoclock Measurements of Tunnelling Times},
  author = {Lisa Torlina and Felipe Morales and Jivesh Kaushal and Harm Geert Muller and Igor Ivanov and Anatoli Kheifets and Alejandro Zielinski and Armin Scrinzi and Misha Ivanov and Olga Smirnova},
  journal = {Nature Phys.},
  year = {2015},
  volume = {11},
  number = {6},
  pages = {503--508},
  doi = {10.1038/nphys3340},
  eprint = {http://arxiv.org/abs/1402.5620},
  archive = {arXiv:1402.5620},
}

@article{ARM_spin-orbit,
  title = {Spin–orbit {Larmor} clock for ionization times in one-photon and strong-field regimes},
  author = {Jivesh Kaushal and Felipe Morales and Lisa Torlina and Misha Ivanov and Olga Smirnova},
  journal = {J. Phys. B: At. Mol. Opt. Phys.},
  volume = {48},
  number = {23},
  pages = {234002},
  year = {2015},
  doi = {10.1088/0953-4075/48/23/234002},
  eprint = {https://arxiv.org/abs/1508.00112},
  archive = {arXiv:1508.00112},
}
@article{ARM_ring-currents,
  title = {Opportunities for detecting ring currents using an attoclock setup},
  author = {Kaushal, Jivesh and Morales, Felipe and Smirnova, Olga},
  journal = {Phys. Rev. A},
  volume = {92},
  number = {6},
  pages = {063405},
  year = {2015},
  doi = {10.1103/PhysRevA.92.063405},
  eprint = {https://arxiv.org/abs/1510.01092},
  archive = {arXiv:1510.01092},
}

@article{ARM_Coulomb_HHG,
  author = {Torlina, Lisa and Smirnova, Olga},
  title = {Coulomb time delays in high harmonic generation},
  journal = {New J. Phys.},
  volume = {19},
  number = {2},
  pages = {023012},
  year = {2017},
  doi = {10.1088/1367-2630/aa55ea},
  eprint = {http://arxiv.org/abs/1607.03103},
  archive = {arXiv:1607.03103}
}

%%% Lisa's thesis
@MastersThesis{torlina_thesis,
  author = {Lisa Torlina},
  title = {The Analytical {R}-Matrix Approach to Strong Field Dynamics},
  type = {{PhD} thesis},
  school = {Technische Universit{\"a}t Berlin},
  year = {2016},
  url = {http://dx.doi.org/10.14279/depositonce-5049},
}

%%% Jivesh's thesis
@MastersThesis{kaushal_thesis,
  author = {Jivesh Kaushal},
  title = {Attosecond Ionisation Dynamics in Long Range Potentials},
  type = {{PhD} thesis},
  school = {Technische Universit{\"a}t Berlin},
  year = {2016},
  url = {http://depositonce.tu-berlin.de/},
}


%%%%%%%%%%%%%% --------------- %%%%%%%%%%%%%%

























%%%%%%%%%%%%%% Correlation papers %%%%%%%%%%%%%%

%%%%% Multi-electron effects in non-strong-field phenomena %%%%%

@article{fano_resonances_1961,
  title = {Effects of Configuration Interaction on Intensities and Phase Shifts},
  author = {Fano, U.},
  journal = {Phys. Rev.},
  volume = {124},
  number = {6},
  pages = {1866--1878},
  year = {1961},
  month = {Dec},
  doi = {10.1103/PhysRev.124.1866}
}

@article{amusia_giant-resonances_2000,
  title = {The theory of collective motion probed by light},
  author = {Amusia, M. Ya and Connerade, J.-P.},
  journal = {Rep. Prog. Phys.},
  volume = {63},
  number = {1},
  year = {2000},
  pages = {41--70},
  doi = {10.1088/0034-4885/63/1/202},
}

@article{schneider_knockout-shakeoff_2002,
  title = {Separation and Identification of Dominant Mechanisms in Double Photoionization},
  author = {Schneider, Tobias and Chocian, Peter Leszek and Rost, Jan-Michael},
  journal = {Phys. Rev. Lett.},
  volume = {89},
  number = {7},
  pages = {073002},
  year = {2002},
  doi = {10.1103/PhysRevLett.89.073002},
  eprint = {http://arxiv.org/abs/physics/0205017},
  archive = {arXiv:physics/0205017}
}

@article{matveev_shakeup_1982,
  author = {Matveev, V I and Parilis, {\'E} S},
  title = {Shake-up processes accompanying electron transitions in atoms},
  journal = {Sov. Phys. Usp.},
  volume = {25},
  number = {12},
  month = dec,
  year = {1982},
  pages = {881--897},
  doi = {10.1070/PU1982v025n12ABEH005003},
}


@article{cooper_auger-decay_2013,
  title = {Single-photon laser enabled {A}uger spectroscopy for measuring attosecond electron hole dynamics},
  author = {B Cooper and V Averbukh},
  journal = {Phys. Rev. Lett.},
  volume = {111},
  number = {8},
  pages	 = {083004},
  year = {2013},
  doi = {10.1103/PhysRevLett.111.083004},
  eprint = {https://spiral.imperial.ac.uk/handle/10044/1/19480},
  archive = {Imperial College eprint},
}

@article{averbukh_ICD_2004,
  title = {Mechanism of Interatomic Coulombic Decay in Clusters},
  author = {Averbukh, Vitali and M\"uller, Imke B. and Cederbaum, Lorenz S.},
  journal = {Phys. Rev. Lett.},
  volume = {93},
  number = {26},
  pages = {263002},
  year = {2004},
  month = {Dec},
  doi = {10.1103/PhysRevLett.93.263002}
}

@article{cederbaum_ultrafast-charge-migration_1999,
  author = {L S Cederbaum and J Zobeley},
  title = {Ultrafast charge migration by electron correlation},
  journal = {Chem. Phys. Lett.},
  volume = 307,
  number = {3--4},
  pages = {205--210},
  year = {1999},
  doi = {10.1016/S0009-2614(99)00508-4}
}
@article{kuleff_hole-migration_2005,
  title = {Multielectron wave-packet propagation: General theory and application},
  author = {A I Kuleff and J Breidbach and L S Cederbaum},
  journal = {J. Chem. Phys.},
  year = {2005},
  volume = {123},
  number = {4},
  pages = {044111},
  doi = {10.1063/1.1961341}
}


@article{hino_perturbation-theory-diagrams-gauge_1993,
  title = {Double photoionization of helium using many-body perturbation theory},
  author = {Hino, K.-{I}. and Ishihara, Takeshi and Shimizu, Futoshi and Toshima, Nobuyuki and McGuire, J. H.},
  journal = {Phys. Rev. A},
  volume = {48},
  number = {2},
  pages = {1271--1276},
  year = {1993},
  month = {Aug},
  doi = {10.1103/PhysRevA.48.1271}
}




%%%%% Multi-electron effects in strong field phenomena %%%%%


%%% Only at self-consistent level
@article{pfeiffer_self-consistent-effects_2012,
  title = {Probing the Longitudinal Momentum Spread of the Electron Wave Packet at the Tunnel Exit},
  author = {Pfeiffer, A. N. and Cirelli, C. and Landsman, A. S. and Smolarski, M. and Dimitrovski, D. and Madsen, L. B. and Keller, U.},
  journal = {Phys. Rev. Lett.},
  volume = {109},
  number = {8},
  pages = {083002},
  year = {2012},
  month = {Aug},
  doi = {10.1103/PhysRevLett.109.083002},
  eprint = {http://arxiv.org/abs/1111.6033},
  archive = {arXiv:1111.6033}
}

%%% Ion left excited
@article{zon_tunnelling-excitation_2000,
  author = {B A Zon},
  title = {Tunneling Ionization of Atoms with Excitation of the Core},
  journal = {J. Exp. Theor. Phys.},
  volume = {91},
  number = {5},
  pages = {899--904},
  year = {2000},
  doi = {10.1134/1.1334980},
  note = {[\emph{Zh. {\'E}ksp. Teor.  Fiz.} \textbf{118} no. 5 (2000), pp. 1041–1047]}
}
@article{litviniuk_shakeup_2005,
  title = {Shakeup Excitation during Optical Tunnel Ioni{\-}za{\-}tion},
  author = {I V Litvinyuk and F L{\'e}gar{\'e} and P W Dooley and D M Villeneuve and P B Corkum and J Zanghellini and A Pegarkov and C Fabian and T Brabec},
  journal = {Phys. Rev. Lett.},
  volume = {94},
  number = {3},
  year = {2005},
  pages = {033003},
  doi =  {10.1103/PhysRevLett.94.033003}
}

%%% And this affects the subsequent dynamics
@article{lin_rescattering-self-imaging_2010,
  author={C D Lin and Anh-Thu Le and Zhangjin Chen and Toru Morishita and Robert Lucchese},
  title={Strong-field rescattering physics: self-imaging of a molecule by its own electrons},
  journal={J. Phys. B: At. Mol Opt. Phys.},
  volume={43},
  number={12},
  pages={122001},
  year={2010},
  doi = {10.1088/0953-4075/43/12/122001},
  eprint = {https://jrm.phys.ksu.edu/Data/abstracts/StrongFieldRescatteringPhysics.pdf},
  archive = {KSU eprint},
}
@article{torres_molecular-structure-and-dynamics-hhg_2010,
  title = {Revealing molecular structure and dynamics through high-order harmonic generation driven by mid-{IR} fields},
  author = {Torres, R. and Siegel, T. and Brugnera, L. and Procino, I. and Underwood, Jonathan G. and Altucci, C. and Velotta, R. and Springate, E. and Froud, C. and Turcu, I. C. E. and Patchkovskii, S. and Ivanov, M. Yu. and Smirnova, O. and Marangos, J. P.},
  journal = {Phys. Rev. A},
  volume = {81},
  number = {5},
  pages = {051802},
  year = {2010},
  doi = {10.1103/PhysRevA.81.051802},
  eprint = {https://spiral.imperial.ac.uk/handle/10044/1/18902},
  archive = {Imperial College eprint},
}
@article{haessler_attosecond-imaging_2010,
  author = {S Haessler and J Caillat and W Boutu and C Giovanetti-Teixeira and T Ruchon and T Auguste and Z Diveki and P Breger and A Maquet and B Carr{\'e} and R Ta{\"{i}}eb and P Sali{\`e}res},
  title = {Attosecond imaging of molecular electronic wavepackets},
  journal = {Nature Phys.},
  year = 2010,
  volume = 6,
  number = 3,
  pages = {200--206},
  doi = {10.1038/nphys1511},
  eprint = {http://hal.upmc.fr/hal-01164779/},
  archive = {HAL e-print},
}

%%% Multielectron simulations
@article{spanner_one-electron_2009,
  title = {One-electron ionization of multielectron systems in strong nonresonant laser fields},
  author = {Spanner, Michael and Patchkovskii, Serguei},
  journal = {Phys. Rev. A},
  volume = {80},
  number = {6},
  pages = {063411},
  year = {2009},
  doi = {10.1103/PhysRevA.80.063411},
  eprint = {http://arxiv.org/abs/0910.2640},
  archive = {arXiv:0910.2640}
}
@article{farrell_strong-field-excited-ionization_2011,
  title = {Strong Field Ionization to Multiple Electronic States in Water},
  author = {Farrell, Joseph P. and Petretti, Simon and F\"orster, Johann and McFarland, Brian K. and Spector, Limor S. and Vanne, Yulian V. and Decleva, Piero and Bucksbaum, Philip H. and Saenz, Alejandro and G\"uhr, Markus},
  journal = {Phys. Rev. Lett.},
  volume = {107},
  number = {8},
  pages = {083001},
  year = {2011},
  doi = {10.1103/PhysRevLett.107.083001},
  eprint = {http://arxiv.org/abs/1103.4423},
  archive = {arXiv:1103.4423}
}

%%% Excited ionization experiments
@article{boguslavskiy_multielectron-ionization_2012,
  author = {Boguslavskiy, Andrey E. and Mikosch, Jochen and Gijsbertsen, Arjan and Spanner, Michael and Patchkovskii, Serguei and Gador, Niklas and Vrakking, Marc J. J. and Stolow, Albert}, 
  title = {The Multielectron Ionization Dynamics Underlying Attosecond Strong-Field Spectroscopies},
  journal = {Science},
  volume = {335}, 
  number = {6074}, 
  pages = {1336-1340}, 
  year = {2012}, 
  doi = {10.1126/science.1212896},
  eprint = {http://faculty.chem.queensu.ca/people/faculty/stolow/Publications/PDF_Publications/2012/Science_CRATI.pdf},
  archive = {QU eprint},
}
@article{wen_n2o4-excited-ionization_2008,
  author = {Li, Wen and Zhou, Xibin and Lock, Robynne and Patchkovskii, Serguei and Stolow, Albert and Kapteyn, Henry C. and Murnane, Margaret M.}, 
  title = {Time-Resolved Dynamics in $\mathrm{{N}}_2\mathrm{{O}}_4$ Probed Using High Harmonic Generation},
  journal = {Science},
  volume = {322}, 
  number = {5905}, 
  pages = {1207-1211}, 
  year = {2008}, 
  doi = {10.1126/science.1163077},
  eprint = {http://jila.colorado.edu/kmgroup/publications/pubinfo/time-resolved-dynamics-n2o4-probed-using-high-harmonic-generation-0},
  archive = {JILA e-print}
}

%%% Zon papers
@article{kornev_many-body-effects_2003,
  title = {Many-body effects in multiply charged ion formation in a superstrong laser field},
  author = {Kornev, Alexey S. and Tulenko, Elena B. and Zon, Boris A.},
  journal = {Phys. Rev. A},
  volume = {79},
  number = {6},
  pages = {063405},
  year = {2009},
  doi = {10.1103/PhysRevA.79.063405},
  eprint = {http://dspace.bsu.edu.ru/handle/123456789/4541},
  archive = {BSU eprint}
}
@article{kornev_kinetics_2003,
  title = {Kinetics of multiple ionization of rare-gas atoms in a circularly polarized laser field},
  author = {Kornev, Alexey S. and Tulenko, Elena B. and Zon, Boris A.},
  journal = {Phys. Rev. A},
  volume = {68},
  number = {4},
  pages = {043414},
  year = {2003},
  doi = {10.1103/PhysRevA.68.043414}
}
@article{kornev_neon-excited-ionization_2004,
  title = {{$\mathrm{Ne}^{+}$} and {$\mathrm{Ne}^{2+}$} ion formation in circularly polarized laser fields: Comparison between theory and experiment},
  author = {Kornev, Alexey S. and Tulenko, Elena B. and Zon, Boris A.},
  journal = {Phys. Rev. A},
  volume = {69},
  number = {6},
  pages = {065401},
  year = {2004},
  doi = {10.1103/PhysRevA.69.065401}
}
@article{zon_many-body_2010,
  title = {Many-body effects in the formation of multiply charged ions in a strong laser field},
  author = {B. A. Zon and A. S. Kornev and E. B. Tulenko},
  journal = {J. Exp. Theor. Phys.},
  volume = 111,
  number = 6,
  pages = {921--935},
  year = 2010,
  doi = {10.1134/S1063776110120058},
  note = {[\emph{Zh. {\'E}ksp. Teor.  Fiz.} \textbf{138} no. 6 (2010), pp. 1043-1059]}
}
@article{zon_many-electron_1999,
  author = {B A Zon},
  title = {Many-electron tunneling in atoms},
  journal = {J. Exp. Theor. Phys.},
  volume = 89,
  number = 2,
  pages = {219--222},
  year = 1999,
  doi = {10.1134/1.558973},
  note = {[\emph{Zh. {\'E}ksp. Teor.  Fiz.} \textbf{116} (1999), pp. 410-417]},
  eprint = {http://arxiv.org/abs/physics/9902009},
  archive = {arXiv:physics/9902009}
}

%%% Gühr Science excited ionization
@article{guehr_hhg-multiple-orbitals_2008,
  author = {B K McFarland and J P Farrell and P H Bucksbaum and M G{\"u}hr}, 
  title={High Harmonic Generation from Multiple Orbitals in {N${}_2$}},
  journal = {Science},
  volume = 322,
  number = 5905,
  pages = {1232--1235},
  year = 2008,
  doi = {10.1126/science.1162780},
  eprint = {http://www-public.slac.stanford.edu/sciDoc/docMeta.aspx?slacPubNumber=slac-pub-13406},
  archive = {Stanford e-print}
}

%%% Olga mid-barrier transitions
@article{walters_correlation-during-tunnelling_2010,
  author={Z B Walters and O Smirnova},
  title={Attosecond correlation dynamics during electron tunnelling from molecules},
  journal={J. Phys. B},
  volume={43},
  number={16},
  pages={161002},
  year={2010},
  doi = {10.1088/0953-4075/43/16/161002},
  eprint = {https://hal.archives-ouvertes.fr/hal-00597865/},
  archive = {HAL eprint},
}

%%% Meckel original (?) LIED paper
@article{meckel_LIED_2008,
  author = {M. Meckel and D. Comtois and D. Zeidler and A. Staudte and D. Pavi\ifmmode \check{c}\else \v{c}\fi{}i\ifmmode \acute{c}\else \'{c}\fi{} H. C. Bandulet and H. P{\'e}pin and J. C. Kieffer and R. D{\"o}rner and D. M. Villeneuve and P. B. Corkum},
  title = {Laser-Induced Electron Tunnel\-ing and Diffraction},
  journal = {Science},
  volume = 13,
  year = 2008,
  pages = {1478--1482 },
  number = 5882,
  doi = {10.1126/science.1157980},
  eprint = {http://dionne.stanford.edu/MatSci202_2011/Science-2008-Meckel-1478-82.pdf},
  archive = {Stanford e-print}
}


%%% Angular distribution as intrinsically interesting
@article{pavicic_angular-dependence-measurement_2007,
  title = {Direct Measurement of the Angular Dependence of Ionization for {${\mathrm{N}}_{2}$}, {${\mathrm{O}}_{2}$}, and {${\mathrm{CO}}_{2}$} in Intense Laser Fields},
  author = {Pavi\ifmmode \check{c}\else \v{c}\fi{}i\ifmmode \acute{c}\else \'{c}\fi{}, Domagoj and Lee, Kevin F. and Rayner, D. M. and Corkum, P. B. and Villeneuve, D. M.},
  journal = {Phys. Rev. Lett.},
  volume = {98},
  number = {24},
  pages = {243001},
  year = {2007},
  doi = {10.1103/PhysRevLett.98.243001}
}
@article{zhou_angular-dependence-theory_2005,
  title = {Role of molecular orbital symmetry on the alignment dependence of high-order harmonic generation with molecules},
  author = {Zhou, Xiao Xin and Tong, X. M. and Zhao, Z. X. and Lin, C. D.},
  journal = {Phys. Rev. A},
  volume = {71},
  number = {6},
  pages = {061801},
  year = {2005},
  doi = {10.1103/PhysRevA.71.061801},
  eprint = {http://www.phys.ksu.edu/personal/cdlin/articles/cdl/j283.pdf},
  archive = {KSU e-print}
}
@article{zhao_molecular-orbital-theory_2011,
  author={Song-Feng Zhao and Junliang Xu and Cheng Jin and Anh-Thu Le and C D Lin},
  title={Effect of orbital symmetry on the orientation dependence of strong field tunnelling ionization of nonlinear polyatomic molecules},
  journal={J. Phys. B: At. Mol. Opt. Phys.},
  volume={44},
  number={3},
  pages={035601},
  year={2011},
  doi = {10.1088/0953-4075/44/3/035601},
  eprint = {http://www.phys.ksu.edu/personal/atle/Papers/MOADK_Polyatomic_jpb11.pdf},
  archive = {KSU e-print}
}

%%% Laser-driven electron diffraction and holography
@article{spanner_reading-diffraction-images_2004,
  title={Reading diffraction images in strong field ionization of diatomic molecules},
  author={Michael Spanner and Olga Smirnova and Paul B Corkum and Misha Yu Ivanov},
  journal={J. Phys. B},
  volume={37},
  number={12},
  pages={L243},
  year={2004},
  doi = {10.1088/0953-4075/37/12/L02}
}
@article{yurchenko_laser-induced-rescattering_2004,
  title = {Laser-Induced Interference, Focusing, and Diffraction of Rescattering Molecular Photoelectrons},
  author = {Yurchenko, S. N. and Patchkovskii, S. and Litvinyuk, I. V. and Corkum, P. B. and Yudin, G. L.},
  journal = {Phys. Rev. Lett.},
  volume = {93},
  number = {22},
  pages = {223003},
  numpages = {4},
  year = {2004},
  month = {Nov},
  doi = {10.1103/PhysRevLett.93.223003},
  eprint = {http://eprints.ucl.ac.uk/170900/},
  archive = {UCL e-print}
}
@article{blaga_imaging_2012,
  author = {C I Blaga and J Xu and A D Di{C}hiara and E Sistrunk and K Zhang and P Agostini and T A Miller and L F Di{M}auro and C D Lin},
  title = {Imaging ultrafast molecular dynamics with laser-induced electron diffraction},
  journal = {Nature},
  year = 2012,
  volume = 483,
  number = 7388,
  pages = {194--197},
  doi = {10.1038/nature10820}
}
@article{huismans_holography-2011,
  title = {Time-Resolved Holography with Photoelectrons},
  author = {Huismans, Y. and Rouz{\'e}e, A. and Gijsbertsen, A. and Jungmann, J. H. and Smolkowska, A. S. and Logman, P. S. W. M. and Lépine, F. and Cauchy, C. and Zamith, S. and Marchenko, T. and Bakker, J. M. and Berden, G. and Redlich, B. and van der Meer, A. F. G. and Muller, H. G. and Vermin, W. and Schafer, K. J. and Spanner, M. and Ivanov, M. Yu. and Smirnova, O. and Bauer, D. and Popruzhenko, S. V. and Vrakking, M. J. J.}, 
  journal = {Science},
  volume = {331}, 
  number = {6013}, 
  pages = {61-64}, 
  year = {2011}, 
  doi = {10.1126/science.1198450}, 
  eprint = {https://hal.archives-ouvertes.fr/hal-00553330},
  archive = {HAL e-print},
}


%%% M Ruberti PhD thesis for residual coherence
@MastersThesis{ruberti_thesis_2004,
  title = {B-spline ADC: many-body ab initio theory for electron dynamics in strong laser fields},
  author = {M Ruberti},
  type = {{PhD} {Thesis}},
  school = {Imperial College London},
  year = {2015},
  url = {https://spiral.imperial.ac.uk/handle/10044/1/29422},
  note = {\S6.3}
}


%%% HHG spectroscopy as a possible experimental tests
@article{shafir_resolving-tunnel-exit-times_2012,
  title = {Resolving the time when an electron exits a tunnelling barrier},
  author = {D Shafir and H Soifer and B D Bruner and M Dagan and Y Mairesse and S Patchkovskii and M Y Ivanov and O Smirnova and N Dudovich},
  journal = {Nature},
  year = {2012},
  volume = 485,
  number = 7398,
  pages = {343--346},
  doi = {10.1038/nature11025}
}

%%% Arissian for precision momentum spectra
@article{arissian_precision-momentum-spectra_2010,
  title = {Direct Test of Laser Tunneling with Electron Momentum Imaging},
  author = {Arissian, L. and Smeenk, C. and Turner, F. and Trallero, C. and Sokolov, A. V. and Villeneuve, D. M. and Staudte, A. and Corkum, P. B.},
  journal = {Phys. Rev. Lett.},
  volume = {105},
  number = {13},
  pages = {133002},
  year = {2010},
  doi = {10.1103/PhysRevLett.105.133002},
  eprint = {http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=shwart&index=an&req=16885338&lang=en},
  archive = {NRC e-print}
}



%%%%%%%%%%%%%% --------------- %%%%%%%%%%%%%%
























%%%%%%%%%%%%%% LES papers %%%%%%%%%%%%%%

%%%%% Sundry %%%%%
%%% Faisal News & Views
@article{faisal_ionization_surprise,
  title = {Strong-field physics:\ Ionization surprise},
  author = {Faisal, Farhad H. M.},
  journal = {Nature Phys.},
  year = {2009},
  volume = {5},
  number = {5},
  pages = {319--320},
  doi = {10.1038/nphys1264},
  eprint = {http://pub.uni-bielefeld.de/publication/1633809},
  archive = {UB e-print}
}



%%%%% Experiments %%%%%

%%% Blaga LES
@article{blaga_original_LES,
  title = {Strong-field photoionization revisited},
  author = {Blaga, C. I. and Catoire, F. and Colosimo, P. and Paulus, G. G. and Muller, H. G. and Agostini, P. and DiMauro, L. F.},
  journal = {Nature Phys.},
  year = {2009},
  volume = {5},
  number = {5},
  pages = {335--338},
  doi = {10.1038/nphys1228},
  eprint = {http://www.dimauro.osu.edu/publications/2009.Strong.pdf},
  archive = {OSU e-print},
}

%%% VLES
@article{VLES_initial,
  title = {Classical Aspects in Above-Threshold Ionization with a Midinfrared Strong Laser Field},
  author = {Quan, W. and Lin, Z. and Wu, M. and Kang, H. and Liu, H. and Liu, X. and Chen, J. and Liu, J. and He, X. T. and Chen, S. G. and Xiong, H. and Guo, L. and Xu, H. and Fu, Y. and Cheng, Y. and Xu, Z. Z.},
  journal = {Phys. Rev. Lett.},
  volume = {103},
  number = {9},
  year = {2009},
  pages = {093001},
  doi = {10.1103/PhysRevLett.103.093001},
}
@article{VLES_characterization,
  title = {Characteristic Spectrum of Very Low-Energy Photoelectron from Above-Threshold Ionization in the Tunneling Regime},
  author = {Wu, C. Y. and Yang, Y. D. and Liu, Y. Q. and Gong, Q. H. and Wu, M. and Liu, X. and Hao, X. L. and Li, W. D. and He, X. T. and Chen, J.},
  journal = {Phys. Rev. Lett.},
  volume = {109},
  number = {4},
  year = {2012},
  pages = {043001},
  doi = {10.1103/PhysRevLett.109.043001},
}

%%% Durá & Wolter, NZES
@article{dura_ionization_2013,
  title = {Ionization with low-frequency fields in the tunneling regime},
  author = {Dura, J. and Camus, N. and Thai, A. and Britz, A. and Hemmer, M. and Baudisch, M. and Senftleben, A. and Schröter, C. D. and Ullrich, J. and Moshammer, R. and Biegert, J.},
  journal = {Sci. Rep.},
  volume = {3},
  pages = {2675},
  year = {2013},
  doi = {10.1038/srep02675},
  eprint = {http://arxiv.org/abs/1305.0148},
  archive = {arXiv:1305.0148}
}
@article{ZES_paper,
  title = {Formation of very-low-energy states crossing the ionization threshold of argon atoms in strong mid-infrared fields},
  author = {Wolter, Benjamin and Lemell, Christoph and Baudisch, Matthias and Pullen, Michael G. and Tong, Xiao-Min and Hemmer, Micha{\"e}l and Senftleben, Arne and Schr{\"o}ter, Claus Dieter and Ullrich, Joachim and Moshammer, Robert and Biegert, Jens and Burgd{\"o}rfer, Joachim},
  journal = {Phys. Rev. A},
  volume = {90},
  number = {6},
  doi = {10.1103/PhysRevA.90.063424},
  year = {2014},
  pages = {063424},
  eprint = {http://arxiv.org/abs/1410.5629},
  archive = {{arXiv}:1410.5629},
}
@article{pullen_kinematically_2014,
  title = {Kinematically complete measurements of strong field ionization with mid-{IR} pulses},
  author = {Pullen, Michael G. and Dura, Judith and Wolter, Benjamin and Baudisch, Matthias and Hemmer, Michaël and Camus, Nicolas and Senftleben, Arne and Schroeter, Claus Dieter and Moshammer, Robert and Ullrich, Joachim and Biegert, Jens},
  journal = {J. Phys. B:\ At., Mol. Opt. Phys.},
  volume = {47},
  number = {20},
  year = {2014},
  pages = {204010},
  doi = {10.1088/0953-4075/47/20/204010},
}


%%% Wolter PRX latest
@article{Wolter_PRX,
  title = {Strong-Field Physics with Mid-{IR} Fields},
  author = {Wolter, Benjamin and Pullen, Michael G. and Baudisch, Matthias and Sclafani, Michele and Hemmer, Micha\"el and Senftleben, Arne and Schr\"oter, Claus Dieter and Ullrich, Joachim and Moshammer, Robert and Biegert, Jens},
  journal = {Phys. Rev. X},
  volume = {5},
  number = {2},
  pages = {021034},
  numpages = {16},
  year = {2015},
  month = {Jun},
  doi = {10.1103/PhysRevX.5.021034},
}

%%% Sundry
@article{off_axis_LES,
  title = {Off-axis low-energy structures in above-thresh\-old ionization},
  author = {M{\"o}ller, M. and Meyer, F. and Sayler, A. M. and Paulus, G. G. and Kling, M. F. and Schmidt, B. E. and Becker, W. and Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D. B.},
  journal = {Phys. Rev. A},
  volume = {90},
  number = {2},
  pages = {023412},
  numpages = {5},
  year = {2014},
  doi = {10.1103/PhysRevA.90.023412},
}

%%% Reaction microscopes
@article{reaction_microscope,
  title = {Reaction microscopes applied to study atomic and molecular fragmentation in intense laser fields:\ non-sequential double ionization of helium},
  author = {V.L.B. de Jesus and A. Rudenko and B. Feuerstein and K. Zrost and C.D. Schr{\"o}ter and R. Moshammer and J. Ullrich},
  journal = {J. Electron Spectrosc. Relat. Phenom.},
  volume = {141},
  number = {2–3},
  pages = {127--142},
  year = {2004},
  doi = {10.1016/j.elspec.2004.06.004},
}
@article{moshammer_ReMi_2003,
  author = {J Ullrich and R Moshammer and A Dorn and R Dörner and L Ph H Schmidt and H Schmidt-Böcking},
  title = {Recoil-ion and electron momentum spectroscopy: reaction-microscopes},
  journal = {Rep. Prog. Phys.},
  volume = {66},
  number = {9},
  pages = {1463},
  doi = {10.1088/0034-4885/66/9/203},
  year = {2003},
  eprint = {http://pubman.mpdl.mpg.de/pubman/faces/viewItemOverviewPage.jsp?itemId=escidoc:919470},
  archive = {MPG eprint},
}







%%%%% Classical theory %%%%%

%%% JM Rost &co
@article{Rost_latest,
  title = {Dynamical Characteristics of {Rydberg} Electrons Released by a Weak Electric Field},
  author = {Diesen, Elias and Saalmann, Ulf and Richter, Martin and Kunitski, Maksim and D\"orner, Reinhard and Rost, Jan M.},
  journal = {Phys. Rev. Lett.},
  volume = {116},
  number = {14},
  pages = {143006},
  year = {2016},
  doi = {10.1103/PhysRevLett.116.143006},
  eprint = {http://arxiv.org/abs/1507.06751},
  archive = {{arXiv}:1507.06751},
}
@article{Rost_PRL,
  title = {Electron-Energy Bunching in Laser-Driven Soft Recollisions},
  author = {K{\"a}stner, Alexander and Saalmann, Ulf and Rost, Jan M.},
  journal = {Phys. Rev. Lett.},
  volume = {108},
  number = {3},
  year = {2012},
  pages = {033201},
  doi = {10.1103/PhysRevLett.108.033201},
  eprint = {http://arxiv.org/abs/1105.4098},
  archive = {arXiv:1105.4098}
}
@article{Rost_JPhysB,
  title = {Energy bunching in soft recollisions revealed with long-wavelength few-cycle pulses},
  author = {K{\"a}stner, Alexander and Saalmann, Ulf and Rost, Jan M.},
  journal = {J. Phys. B:\ At. Mol. Opt. Phys.},
  volume = {45},
  number = {7},
  month = apr,
  year = {2012},
  pages = {074011},
  doi = {10.1088/0953-4075/45/7/074011},
}

%%% Kelvich caustics
@article{kelvich_coulomb-focusing_2015,
  title = {Coulomb focusing and defocusing in above-threshold-ionization spectra produced by strong mid-{IR} laser pulses},
  author = {Kelvich, S. A. and Becker, W. and Goreslavski, S. P.},
  journal = {Phys. Rev. A},
  volume = {93},
  number = {3},
  pages = {033411},
  numpages = {12},
  year = {2016},
  doi = {10.1103/PhysRevA.93.033411},
}

%%% CTMC
@article{CTMC1,
  title = {Origin of Unexpected Low Energy Structure in Photoelectron Spectra Induced by Midinfrared Strong Laser Fields},
  author = {Liu, Chengpu and Hatsagortsyan, Karen Z.},
  journal = {Phys. Rev. Lett.},
  volume = {105},
  number = {11},
  year = {2010},
  pages = {113003},
  doi = {10.1103/PhysRevLett.105.113003},
  eprint = {http://arxiv.org/abs/1007.5173},
  archive = {arXiv:1007.5173},
}
@article{CTMC2,
  title = {Wavelength and intensity dependence of multiple forward scattering of electrons at above-threshold ionization in mid-infrared strong laser fields},
  author = {Liu, Chengpu and Hatsagortsyan, Karen Z.},
  journal = {J. Phys. B:\ At. Mol. Opt. Phys.},
  volume = {44},
  doi = {10.1088/0953-4075/44/9/095402},
  number = {9},
  month = may,
  year = {2011},
  pages = {095402},
  eprint = {http://arxiv.org/abs/1011.1810},
  archive = {arXiv:1011.1810}
}
@article{CTMC3,
  title = {Coulomb focusing in above-threshold ionization in elliptically polarized midinfrared strong laser fields},
  author = {Liu, Chengpu and Hatsagortsyan, Karen Z.},
  journal = {Phys. Rev. A},
  volume = {85},
  number = {2},
  year = {2012},
  pages = {023413},
  doi = {10.1103/PhysRevA.85.023413},
  eprint = {http://arxiv.org/abs/1109.5645},
  archive = {arXiv:1109.5645}
}

@article{lemell_lowenergy_2012,
  title = {Low-energy peak structure in strong-field ionization by midinfrared laser pulses:\ Two-dimensional focusing by the atomic potential},
  shorttitle = {Low-energy peak structure in strong-field ionization by midinfrared laser pulses},
  author = {Lemell, Christoph and Dimitriou, Konstantinos I. and Tong, Xiao-Min and Nagele, Stefan and Kartashov, Daniil V. and Burgd{\"o}rfer, Joachim and Gr{\"a}fe, Stefanie},
  journal = {Phys. Rev. A},
  volume = {85},
  number = {1},
  year = {2012},
  pages = {011403},
  doi = {10.1103/PhysRevA.85.011403},
  eprint = {http://arxiv.org/abs/1109.0607},
  archive = {arXiv:1109.0607}
}
@article{lemell_classicalquantum_2013,
  title = {Classical-quantum correspondence in atomic ionization by midinfrared pulses:\ Multiple peak and interference structures},
  author = {Lemell, Christoph and Burgd{\"o}rfer, Joachim and Gr{\"a}fe, Stefanie and Dimitriou, Konstantinos I. and Arb{\'o}, Diego G. and Tong, Xiao-Min},
  journal = {Phys. Rev. A},
  volume = {87},
  number = {1},
  year = {2013},
  pages = {013421},
  doi = {10.1103/PhysRevA.87.013421},
}

@article{zhi_Coulomb-LES_2014,
  author={Lin Zhi-Yang and Wu Ming-Yan and Quan Wei and Liu Xiao-Jun and Chen Jing and Cheng Ya},
  title = {The {C}oulomb effect on a low-energy structure in above-threshold ionization spectra induced by mid-infrared laser pulses},
  journal = {Chinese Phys. B},
  volume = {23},
  number = {2},
  pages = {023201},
  year = {2014},
  doi = {10.1088/1674-1056/23/2/023201}
}

@article{xia_near-zero-energy_2015,
  title = {Momentum Distribution of Near-Zero-Energy Photoelectrons in the Strong-Field Tunneling Ionization in the Long Wavelength Limit},
  author = {Q. Z. Xia and D. F. Ye and L. B. Fu and X. Y. Han and J. Liu},
  journal = {Sci. Rep.},
  volume = {5},
  pages = {11473},
  year = {2015},
  doi = {10.1038/srep11473},
  eprint = {http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4469979/},
  archive = {PMC eprint},
}


%%%%% CCSFA %%%%%
@article{yan_TCSFA_caustics,
  title = {Low-Energy Structures in Strong Field Ionization Revealed by Quantum Orbits},
  author = {Yan, Tian-Min and Popruzhenko, S. V. and Vrakking, M. J. J. and Bauer, D.},
  journal = {Phys. Rev. Lett.},
  volume = {105},
  number = {25},
  year = {2010},
  pages = {253002},
  doi = {10.1103/PhysRevLett.105.253002},
  eprint = {http://arxiv.org/abs/1008.3144},
  archive = {arXiv:1008.3144},
}

%%% Popruzhenko branch cuts
@article{popruzhenko_branch-cuts_2014,
  title = {Invariant form of {Coulomb} corrections in the theory of nonlinear ionization of atoms by intense laser radiation},
  author = {S. V. Popruzhenko},
  journal = {J. Exp. Theor. Phys.},
  volume = {118},
  number = {4},
  pages = {580--586},
  year = {2014},
  doi = {10.1134/S1063776114040062},
}

%%% Keil, Popruzhenko & Bauer, branch cut navigation
@article{keil_branch-cuts_2016,
  author = {Keil, {\relax Th}. and Popruzhenko, S. V. and Bauer, D.},
  title = {Laser-Driven Recollisions under the {Coulomb} Barrier},
  journal = {Phys. Rev. Lett.},
  volume = {117},
  number = {24},
  pages = {243003},
  year = {2016},
  doi = {10.1103/PhysRevLett.117.243003},
  eprint = {http://arxiv.org/abs/1608.03844},
  archive = {arXiv:1608.03844},
}

%%%%% TDSE %%%%%
@article{telnov_TDSE_with_and_without_Coulomb,
  title = {Low-energy structure of above-threshold-ionization electron spectra:\ Role of the Coulomb threshold effect},
  shorttitle = {Low-energy structure of above-threshold-ionization electron spectra},
  author = {Telnov, Dmitry A. and Chu, Shih-I},
  journal = {Phys. Rev. A},
  volume = {83},
  number = {6},
  year = {2011},
  pages = {063406},
  doi = {10.1103/PhysRevA.83.063406},
}
@article{catoire_angular-distributions_2009,
  title = {Mid-infrared strong field ionization  angular distributions},
  author = {F Catoire and C I Blaga and E Sistrunk and H G Muller and P Agostini and L F DiMauro},
  journal = {Laser Phys.},
  volume = {19},
  number = {8},
  pages = {1574--1580},
  year = {2009},
  doi = {10.1134/S1054660X09150079},
  eprint = {https://amolf.nl/publications/mid-infrared-strong-field-ionization-angular-distributions},
  archive = {AMOLF eprint},
}


%%%%% ISFA %%%%%
@article{becker_ATI-low-energy_2015,
  title={Above-threshold ionization for very low electron energy},
  author = {Becker, W and Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D B},
  journal = {J. Phys. B:\ At. Mol. Opt. Phys.},
  volume = {48},
  number = {15},
  year = {2015},
  pages = {151001},
  doi = {10.1088/0953-4075/48/15/151001},
}
@article{Becker_Milosevic_quantum_orbits,
  title = {Quantum-orbit theory of low-energy above-threshold ionization on and off axis},
  author = {Becker, W and Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D B},
  journal = {Chin. Opt. Lett.},
  volume = {13},
  number = {7},
  pages = {070006},
  year = {2015},
  doi = {10.3788/COL201513.070006}
}
@article{becker_milosevic_unified_2016,
  title = {Unified description of low-order above-threshold ionization on and off axis},
  author = {W Becker and D B Milošević},
  journal = {J. Phys. Conf. Ser.},
  volume = {691},
  number = {1},
  pages = {012002},
  year = {2016},
  doi = {10.1088/1742-6596/691/1/012002}
}
@article{Milosevic_reexamination,
  title = {Reexamination of the improved strong-field approximation:\ Low-energy structures in the above-threshold ionization spectra for short-range potentials},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D. B.},
  journal = {Phys. Rev. A},
  volume = {88},
  number = {2},
  pages = {023417},
  numpages = {10},
  year = {2013},
  month = {Aug},
  doi = {10.1103/PhysRevA.88.023417},
}
@article{Milosevic_scattering_large,
  title = {Forward- and backward-scattering quantum orbits in above-threshold ionization},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D. B.},
  journal = {Phys. Rev. A},
  volume = {90},
  number = {6},
  pages = {063414},
  numpages = {11},
  year = {2014},
  doi = {10.1103/PhysRevA.90.063414},
}


%%%%% Mixed-method theory %%%%%

@article{Becker_rescattering,
  title = {Low-energy electron rescattering in laser-induced ionization},
  author = {Becker, W. and Goreslavski, S.P. and Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D. B. and Paulus, G.G.},
  journal = {J. Phys. B:\ At. Mol. Opt. Phys.},
  volume = {47},
  number = {20},
  pages = {204022},
  year = {2014},
  doi = {10.1088/0953-4075/47/20/204022}
}


%%%%% Sundry theory %%%%%

%%% Fan-shaped interference
@article{arbo_fan_shaped_interference,
  title = {Interference Oscillations in the Angular Distribution of Laser-Ionized Electrons near Ionization Threshold},
  author = {Arb{\'o}, D. G. and Yoshida, S. and Persson, E. and Dimitriou, K. I. and Burgd{\"o}rfer, J.},
  journal = {Phys. Rev. Lett.},
  volume = {96},
  number = {14},
  pages = {143003},
  numpages = {4},
  year = {2006},
  doi = {10.1103/PhysRevLett.96.143003},
}
@article{rudenko_fan_shaped_interference,
  title = {Resonant structures in the low-energy electron continuum for single ionization of atoms in the tunnelling regime},
  author = {Rudenko, A. and Zrost, K. and Schr{\"o}ter, C. D. and Jesus, V. L. B. de and Feuerstein, B. and Moshammer, R. and Ullrich, J.},
  journal = {J. Phys. B:\ At. Mol. Opt. Phys.},
  volume = {37},
  number = {24},
  month = dec,
  year = {2004},
  pages = {L407},
  doi = {10.1088/0953-4075/37/24/L03},
  eprint = {http://arxiv.org/abs/physics/0408064},
  archive = {arXiv:physics/0408064},
}

%%% Soft-recollision streaking paper
@article{streaking_soft_recollisions,
  title = {Attosecond Streaking in the Low-Energy Region as a Probe of Rescattering},
  author = {Xu, Ming-Hui and Peng, Liang-You and Zhang, Zheng and Gong, Qihuang and Tong, Xiao-Min and Pronin, Evgeny A. and Starace, Anthony F.},
  journal = {Phys. Rev. Lett.},
  volume = {107},
  number = {18},
  pages = {183001},
  numpages = {5},
  year = {2011},
  doi = {10.1103/PhysRevLett.107.183001},
  eprint = {http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1186&context=physicsstarace},
  archive = {UNL eprint}
}


%%% Chaotic Coulomb dynamics
@article{chaotic_dynamics,
  title = {Irregular Orbits Generate Higher Harmonics},
  author = {van de Sand, Gerd and Rost, Jan M.},
  journal = {Phys. Rev. Lett.},
  volume = {83},
  number = {3},
  pages = {524--527},
  numpages = {0},
  year = {1999},
  doi = {10.1103/PhysRevLett.83.524},
  eprint = {http://arxiv.org/abs/physics/9903036},
  archive = {arXiv:physics/9903036}
}

%%% PSW
@article{murnane_TCSFA_tunnel_exit,
  title = {Direct Visualization of Laser-Driven Electron Multiple Scattering and Tunneling Distance in Strong-Field Ionization},
  author = {Hickstein, Daniel D. and Ranitovic, Predrag and Witte, Stefan and Tong, Xiao-Min and Huismans, Ymkje and Arpin, Paul and Zhou, Xibin and Keister, K. Ellen and Hogle, Craig W. and Zhang, Bosheng and Ding, Chengyuan and Johnsson, Per and Toshima, N. and Vrakking, Marc J. J. and Murnane, Margaret M. and Kapteyn, Henry C.},
  journal = {Phys. Rev. Lett.},
  volume = {109},
  number = {7},
  pages = {073004},
  numpages = {5},
  year = {2012},
  doi = {10.1103/PhysRevLett.109.073004},
  eprint = {http://jila.colorado.edu/kmgroup/publications/pubinfo/direct-visualization-laser-driven-electron-multiple-scattering-and-tunneling},
  archive = {JILA e-print},
}

%%% S-matrix
@article{Titi_Drake_S_Matrix,
  title = {Origin of the Low Energy Structure in Above Threshold Ionization},
  author = {Titi, A S and Drake, G W F},
  year = {2015},
  eprint = {http://arxiv.org/abs/1506.03034},
  archive = {{arXiv}:1506.03034}
}

%%% LFA
@article{Milosevic_LFA,
  title = {Low-frequency approximation for above-threshold ionization by a laser pulse:\ Low-energy forward rescattering},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D. B.},
  journal = {Phys. Rev. A},
  volume = {90},
  number = {6},
  pages = {063423},
  numpages = {9},
  year = {2014},
  doi = {10.1103/PhysRevA.90.063423},
}

%%% Scaling
@article{LES_Scaling,
  title = {Scaling of the Low-Energy Structure in Above-Threshold Ionization in the Tunneling Regime:\ Theory and Experiment},
  author = {Guo, L. and Han, S. S. and Liu, X. and Cheng, Y. and Xu, Z. Z. and Fan, J. and Chen, J. and Chen, S. G. and Becker, W. and Blaga, C. I. and DiChiara, A. D. and Sistrunk, E. and Agostini, P. and DiMauro, L. F.},
  journal = {Phys. Rev. Lett.},
  volume = {110},
  number = {1},
  pages = {013001},
  numpages = {5},
  year = {2013},
  doi = {10.1103/PhysRevLett.110.013001},
  eprint = {http://www.dimauro.osu.edu/publications/2013.Scaling.pdf},
  archive = {OSU e-print}
}

%%% Agostini review 
@incollection{agostini_ionization-review_2012,
  title = {Atomic and Molecular Ionization Dynamics in Strong Laser Fields: from Optical to X-rays},
  author = {Pierre Agostini and Louis F. Di{M}auro},
  editor = {Paul Berman and Ennio Arimondo and Chun Lin},
  booktitle = {Advances in Atomic, Molecular, and Optical Physics},
  publisher = {Academic Press},
  year = {2012},
  volume = {61},
  pages = {117 -- 158},
  doi = {10.1016/B978-0-12-396482-3.00003-X},
  eprint = {https://www.physics.ohio-state.edu/~dimauro/Publications/DiMauro/2012.AMOP.review.pdf},
  archive = {OSU eprint},
}


%%%%% Other stuff %%%%%

%%% Rydberg state creation
@article{nubbemeyer_rydberg-creation_2008,
  title = {Strong-Field Tunneling without Ionization},
  author = {Nubbemeyer, T. and Gorling, K. and Saenz, A. and Eichmann, U. and Sandner, W.},
  journal = {Phys. Rev. Lett.},
  volume = {101},
  number = {23},
  year = {2008},
  pages = {233001},
  doi = {10.1103/PhysRevLett.101.233001},
}
@article{landsman_Rydberg-creation_2015,
  title = {Rydberg state creation by tunnel ionization},
  author = {A S Landsman and A N Pfeiffer and C Hofmann and M Smolarski and C Cirelli and U Keller},
  journal = {New J. Phys.},
  volume = {15},
  number = {1},
  pages = {013001},
  year = {2015},
  doi = {10.1088/1367-2630/15/1/013001}
}
@article{larimian_rydberg-detection_conference_2015,
  author = {Seyedreza Larimian and Sonia Erattupuzha and Raffael Maurer and Christoph Lemell and Stefan Nagele and Shuhei
Yoshida and Joachim Burgdörfer and Andrius Baltuška and Markus Kitzler and Xinhua Xie},
  title = {High-Lying {Rydberg} States from Strong Field Interaction},
  journal = {J. Phys. Conf. Ser.},
  volume = {635},
  number = {9},
  pages = {092084},
  year = {2015},
  doi = {10.1088/1742-6596/635/9/092084},
}

%%%%%%%%%%%%%% ------------ %%%%%%%%%%%%%%

























%%%%%%%%%%%%%% Bicircular HHG %%%%%%%%%%%%%%

%%%%% Experiment %%%%%

%%% First experiment
@article{EichmannExperiment,
  title = {Polarization-dependent high-order two-color mixing},
  author = {Eichmann, H. and Egbert, A. and Nolte, S. and Momma, C. and Wellegehausen, B. and Becker, W. and Long, S. and McIver, J. K.},
  journal = {Phys. Rev. A},
  volume = {51},
  number = {5},
  pages = {R3414--R3417},
  year = {1995},
  doi = {10.1103/PhysRevA.51.R3414}
}

%%% Fleischer-era experiments
@article{fleischer_spin_2014,
  author = {Avner Fleischer and Ofer Kfir and Tzvi Diskin and Pavel Sidorenko and Oren Cohen},
  title = {Spin angular momentum and tunable polarization in high-harmonic generation},
  journal = {Nature Photon.},
  volume = {8},
  number = {7},
  pages = {543--549},
  year = {2014},
  doi = {10.1038/nphoton.2014.108},
  eprint = {http://arxiv.org/abs/1310.1206},
  archive = {arXiv:1310.1206},
}

@article{kfir_generation_2015,
  title = {Generation of bright phase-matched circularly-polarized extreme ultraviolet high harmonics},
  author = {Ofer Kfir and patrik Grychtol and Emrah Turgut and Ronny Knut and Dmitriy Zusin and Dimitar Popmintchev and Tenio Popmintchev and Hans Nembach and Justin M Shaw and Avner Fleischer and Henry Kapteyn and Margaret Murnane and Oren Cohen},
  journal = {Nature Photon.},
  volume = {9},
  number = {2},
  pages = {99 -- 105},
  year = {2015},
  doi = {10.1038/nphoton.2014.293}
}

@article{fan_bright-circularly_2015,
  title = {Bright circularly polarized soft X-ray high harmonics for X-ray magnetic circular dichroism},
  author = {Tingting Fan and Patrik Grychtol and Ronny Knut and Carlos Hernández-García and Daniel D. Hickstein and Dmitriy Zusin and Christian Gentry and Franklin J. Dollar and Christopher A. Mancuso and Craig W. Hogle and Ofer Kfir and Dominik Legut and Karel Carva and Jennifer L. Ellis and Kevin M. Dorney and Cong Chen and Oleg G. Shpyrko and Eric E. Fullerton and Oren Cohen and Peter M. Oppeneer and Dejan B. Milošević and Andreas Becker and Agnieszka A. Jaroń-Becker and Tenio Popmintcheva and Margaret M. Murnane and Henry C. Kapteyn},
  journal = {Proc. Natl. Acad. Sci. USA},
  volume = {112},
  number = {46},
  pages = {14206--14211},
  year = {2015},
  doi = {10.1073/pnas.1519666112},
  eprint = {http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4655510/},
  archive = {PMC eprint}
}

@article{kfir_in-line-bicircular_2016,
  title = {In-line production of a bi-circular field for generation of helically polarized high-order harmonics},
  author = {Ofer Kfir and Eliyahu Bordo and Gil Ilan Haham and Oren Lahav and Avner Fleischerand Oren Cohen},
  journal = {Appl. Phys. Lett.},
  volume = {108},
  pages = {211106},
  year = {2016},
  doi = {10.1063/1.4952436},
}

@article{kfir_chiral-phase-matching_2016,
  title = {Helicity-selective phase-matching and quasi-phase matching of circularly polarized high-order harmonics: towards chiral attosecond pulses},
  author = {Ofer Kfir and Patrik Grychtol and Emrah Turgut and Ronny Knut and Dmitriy Zusin and Avner Fleischer and Eliyahu Bordo and Tingting Fan and Dimitar Popmintchev and Tenio Popmintchev and Henry Kapteyn and Margaret Murnane and Oren Cohen},
  journal = {J. Phys. B: At. Mol. Opt. Phys.},
  volume = {49},
  number = {12},
  pages = {123501},
  year = {2016},
  doi = {10.1088/0953-4075/49/12/123501},
}


@article{hickstein_non-collinear_2015,
  title = {Non-collinear generation of angularly isolated circularly polarized high harmonics},
  author = {Daniel D. Hickstein and Franklin J. Dollar and Patrik Grychtol and Jennifer L. Ellis and Ronny Knut and Carlos Hern\'andez-Garc\'ia and Dmitriy Zusin and Christian Gentry and Justin M. Shaw and Tingting Fan, Kevin M. Dorney and Andreas Becker and Agnieszka Jaro\'n-Becker and Henry C. Kapteyn and Margaret M. Murnane and Charles G. Durfee},
  journal = {Nature Photon.},
  volume = {9},
  number = {11},
  pages = {743 -- 750},
  year = {2015},
  doi = {10.1038/nphoton.2015.181},
}


%%% Polarimetry
@article{veyrinhas_polarimetry-original_2013,
  title = {Complete determination of the state of elliptically polarized light by electron-ion vector correlations},
  author = {Veyrinas, K. and Elkharrat, C. and Marggi Poullain, S. and Saquet, N. and Dowek, D. and Lucchese, R. R. and Garcia, G. A. and Nahon, L.},
  journal = {Phys. Rev. A},
  volume = {88},
  number = {6},
  pages = {063411},
  year = {2013},
  doi = {10.1103/PhysRevA.88.063411},
}
@unpublished{veyrinhas_depolarized-hhg-atto_2015,
  title= {\href{http://www.atto2015.inrs.ca/?page_id=406}{Depolarization in High Harmonic Generation}},
  author = {Kevin Veyrinas and Vincent Gruson and S. J. Weber and L. Barreau and T. Ruchon and J.C. Houver and B. Carré and R.R. Lucchese and D. Dowek and P. Salières},
  year = {2015},
  note= {Conference talk, \href{http://www.atto2015.inrs.ca/}{ATTO2015} (5th International Conference in Attosecond Physics, Saint-Sauveur, Canada, July 6-10 2015)},
}

@article {chen_tomographic-hhg-polarimetry_2016,
  title = {Tomographic reconstruction of circularly polarized high-harmonic fields: {3D} attosecond metrology},
  author = {Chen, Cong and Tao, Zhensheng and Hern{\'a}ndez-Garc{\'\i}a, Carlos and Matyba, Piotr and Carr, Adra and Knut, Ronny and Kfir, Ofer and Zusin, Dimitry and Gentry, Christian and Grychtol, Patrik and Cohen, Oren and Plaja, Luis and Becker, Andreas and Jaron-Becker, Agnieszka and Kapteyn, Henry and Murnane, Margaret},
  journal = {Sci. Adv.},
  volume = {2},
  number = {2},
  year = {2016},
  pages = {1501333},
  doi = {10.1126/sciadv.1501333},
}



%%%%% Theory %%%%%

%%% SFA treatments
@article{SFALong,
  title = {Model calculations of polarization-dependent two-color high-harmonic generation},
  author = {Long, S. and Becker, W. and McIver, J. K.},
  journal = {Phys. Rev. A},
  volume = {52},
  number = {3},
  pages = {2262--2278},
  year = {1995},
  doi = {10.1103/PhysRevA.52.2262}
}
@article{SFAMilosevic,
  title = {High-order harmonic generation in a bichromatic elliptically polarized laser field},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, Dejan B. and Piraux, Bernard},
  journal = {Phys. Rev. A},
  volume = {54},
  number = {2},
  pages = {1522--1531},
  numpages = {0},
  year = {1996},
  month = {Aug},
  doi = {10.1103/PhysRevA.54.1522}
}
@article{SFAMilosevicBecker,
  title = {Generation of circularly polarized high-order harmonics by two-color coplanar field mixing},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, Dejan B. and Becker, Wilhelm and Kopold, Richard},
  journal = {Phys. Rev. A},
  volume = {61},
  number = {6},
  pages = {063403},
  numpages = {15},
  year = {2000},
  month = {May},
  doi = {10.1103/PhysRevA.61.063403}
}
@article{SFACeccherini,
  title = {Harmonic generation by atoms in circularly polarized two-color laser fields with coplanar polarizations and commensurate frequencies},
  author = {Ceccherini, F. and Bauer, D. and Cornolti, F.},
  journal = {Phys. Rev. A},
  volume = {68},
  number = {5},
  pages = {053402},
  numpages = {9},
  year = {2003},
  month = {Nov},
  doi = {10.1103/PhysRevA.68.053402},
  eprint = {http://arxiv.org/abs/physics/0211110},
  archive = {arXiv: physics/0211110}
}
@article{MilosevicIsolatedPulses,
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D. B. and Becker, W.},
  title = {Attosecond pulse generation by bicircular fields: from pulse trains to a single pulse},
  journal = {J. Mod. Opt.},
  volume = {52},
  number = {2-3},
  pages = {233-241},
  year = {2005},
  doi = {10.1080/09500340410001731011}
}
@article{milosevic_unusual-nonlinear-polarization_2000,
  title = {Attosecond pulse trains with unusual nonlinear polarization},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, Dejan B. and Becker, Wilhelm},
  journal = {Phys. Rev. A},
  volume = {62},
  number = {1},
  pages = {011403},
  year = {2000},
  doi = {10.1103/PhysRevA.62.011403},
}
@article{milosevic_bicircular-hhg_2000,
  title = {Extreme-ultraviolet harmonic generation near 13 nm with a two-color elliptically polarized laser field},
  author = {Dejan B. Milo\v{s}evi\'{c} and Wolfgang Sandner},
  journal = {Opt. Lett.},
  number = {20},
  pages = {1532--1534},
  volume = {25},
  year = {2000},
  doi = {10.1364/OL.25.001532},
}

@article{milosevic_hhg-laser-phys_2001,
  title = {High-Harmonic Generation by a Bichromatic Bicircular Laser Field},
  author = {D. B. Milo\v{s}ević and W. Becker and R. Kopold and W. Sandner},
  year = {2001},
  journal = {Laser Phys.},
  volume = {11},
  number = {2},
  pages = {165–168},
}



%%% Post-Fleischer theory
@article{reich-madsen_rotating-frame-bicircular_2016,
  title = {Rotating-frame perspective on high-order-harmonic generation of circularly polarized light},
  author = {Reich, Daniel M. and Madsen, Lars Bojer},
  journal = {Phys. Rev. A},
  volume = {93},
  number = {4},
  pages = {043411},
  year = {2016},
  doi = {10.1103/PhysRevA.93.043411},
  eprint = {https://arxiv.org/abs/1602.07166},
  archive = {arXiv:1602.07166},
}
@article{reich-madsen_molecular-symmetries_2016,
  title = {Illuminating Molecular Symmetries with Bicircular High-Order-Harmonic Generation},
  author = {Daniel M. Reich and Lars Bojer Madsen},
  journal = {Phys. Rev. Lett.},
  volume = {117},
  number = {13},
  pages = {133902},
  year = {2016},
  doi = {10.1103/PhysRevLett.117.133902},
  eprint = {http://arxiv.org/abs/1606.05524},
  archive = {arXiv:1606.05524},
}
@article{baykusheva_bicircular-hhg-spectroscopy,
  title = {Bicircular High-Harmonic Spectroscopy Reveals Dynamical Symmetries of Atoms and Molecules},
  author = {Baykusheva, Denitsa and Ahsan, Md Sabbir and Lin, Nan and W\"orner, Hans Jakob},
  journal = {Phys. Rev. Lett.},
  volume = {116},
  number = {12},
  pages = {123001},
  year = {2016},
  doi = {10.1103/PhysRevLett.116.123001},
  eprint = {https://www.ethz.ch/content/dam/ethz/special-interest/chab/physical-chemistry/ultrafast-spectroscopy-dam/documents/publications/2016/Baykusheva16a.pdf},
  archive = {ETH eprint},
}
@article{liu_selection-rules-hhg_2016,
  title = {Selection rules of high-order-harmonic generation: Symmetries of molecules and laser fields},
  author = {Xi Liu and Xiaosong Zhu and Liang Li and Yang Li and Qingbin Zhang and Pengfei Lan and Peixiang Lu},
  journal = {Phys. Rev. A},
  volume = {94},
  number = {3},
  pages = {033410},
  year = {2016},
  doi = {10.1103/PhysRevA.94.033410},
  eprint = {http://arxiv.org/abs/1606.00529},
  archive = {arXiv:1606. 00529},
}
@article{mauger_bicircular-molecular-hhg,
  author = {F Mauger and A D Bandrauk and T Uzer},
  title = {Circularly polarized molecular high harmonic generation using a bicircular laser},
  journal = {J. Phys. B: At. Mol. Opt. Phys.},
  volume = {49},
  number = {10},
  pages = {10LT01},
  year = {2016},
  doi = {10.1088/0953-4075/49/10/10LT01},
  eprint = {https://hal.archives-ouvertes.fr/hal-01101871/},
  archive = {HAL eprint},
}
@article{odzak_polyatomic-bicircular_2016,
  title = {High-order harmonic generation in polyatomic molecules induced by a bicircular laser field},
  author = {Senad Od\v{z}ak and Elvedin Hasovi\'{c} and Dejan B. Milo\v{s}evi\'{c}},
  journal = {Phys. Rev. A},
  volume = {94},
  number = {3},
  pages = {033419},
  year = {2016},
  doi = {10.1103/PhysRevA.94.033419},
  eprint = {https://arxiv.org/abs/1607.01773},
  archive = {arXiv:1607.01773},
}
@article{yuan-bandrauk_circular-hhg-extended-asymmetric-molecules_2011,
  title = {Generation of circularly polarized attosecond pulses by intense ultrashort laser pulses from extended asymmetric molecular ions},
  author = {Yuan, Kai-Jun and Bandrauk, Andr\'e D.},
  journal = {Phys. Rev. A},
  volume = {84},
  number = {2},
  pages = {023410},
  year = {2011},
  doi = {10.1103/PhysRevA.84.023410},
}
@article{hernandez_isolated-circular-pulses_2016,
  title = {Schemes for generation of isolated attosecond pulses of pure circular polarization},
  author = {Hern\'andez-Garc\'{\i}a, C. and Durfee, C. G. and Hickstein, D. D. and Popmintchev, T. and Meier, A. and Murnane, M. M. and Kapteyn, H. C. and Sola, I. J. and Jaron-Becker, A. and Becker, A.},
  journal = {Phys. Rev. A},
  volume = {93},
  number = {4},
  pages = {043855},
  year = {2016},
  doi = {10.1103/PhysRevA.93.043855},
  eprint = {http://jila.colorado.edu/kmgroup/publications/pubinfo/schemes-generation-isolated-attosecond-pulses-pure-circular-polarization},
  archive = {JILA eprint},
}


%%% Circular attosecond pulses
@article{milosevic_elliptical-apt_2015,
  title = {Generation of elliptically polarized attosecond pulse trains},
  author = {Dejan B. Milo\v{s}evi\'{c}},
  journal = {Opt. Lett.},
  number = {10},
  pages = {2381--2384},
  volume = {40},
  year = {2015},
  doi = {10.1364/OL.40.002381},
}

%%% P-state calculations
@article{milosevic_circularly_2015,
  title = {Circularly polarized high harmonics generated by a bicircular field from inert atomic gases in the $p$ state: A tool for exploring chirality-sensitive processes},
  author = {Milo\v{s}evi\'{c}, D. B.},
  journal = {Phys. Rev. A},
  volume = {92},
  number = {4},
  pages = {043827},
  numpages = {9},
  year = {2015},
  doi = {10.1103/PhysRevA.92.043827},
}
@article{medisauskas_generating_2016,
  title = {Generating Isolated Elliptically Polarized Attosecond Pulses Using Bichromatic Counterrotating Circularly Polarized Laser Fields},
  author = {Medi\v{s}auskas, Lukas and Wragg, Jack and van der Hart, Hugo and Ivanov, Misha Yu.},
  journal = {Phys. Rev. Lett.},
  volume = {115},
  number = {15},
  pages = {153001},
  numpages = {5},
  year = {2015},
  doi = {10.1103/PhysRevLett.115.153001},
  eprint = {http://arxiv.org/abs/1504.06578},
  archive = {ar{X}iv:1504.06578},
}

%%% Milosevic spin conservation re-hash
@article{milosevic_bicircular-angular-momentum_2015,
  author={D B Milo\v{s}evi\'c},
  title={High-order harmonic generation by a bichromatic elliptically polarized field: conservation of angular momentum},
  journal={J. Phys. B: At. Mol. Opt. Phys.},
  volume={48},
  number={17},
  pages={171001},
  year={2015},
  doi = {10.1088/0953-4075/48/17/171001},
}



%%%%% Other theory on bicircular fields

%%% Ionization
@article{mancuso_bicircular-ionization_2015,
  title = {Strong-field ionization with two-color circularly polarized laser fields},
  author = {Mancuso, Christopher A. and Hickstein, Daniel D. and Grychtol, Patrik and Knut, Ronny and Kfir, Ofer and Tong, Xiao-Min and Dollar, Franklin and Zusin, Dmitriy and Gopalakrishnan, Maithreyi and Gentry, Christian and Turgut, Emrah and Ellis, Jennifer L. and Chen, Ming-Chang and Fleischer, Avner and Cohen, Oren and Kapteyn, Henry C. and Murnane, Margaret M.},
  journal = {Phys. Rev. A},
  volume = {91},
  number = {3},
  pages = {031402},
  numpages = {7},
  year = {2015},
  doi = {10.1103/PhysRevA.91.031402},
  eprint = {http://jila.colorado.edu/kmgroup/publications/pubinfo/strong-field-ionization-two-color-circularly-polarized-laser-fields},
  archive = {JILA eprint},
}
@article{mancuso_bicircular-rescattering_2016,
  title = {Controlling electron-ion rescattering in two-color circularly polarized femtosecond laser fields},
  author = {Mancuso, Christopher A. and Hickstein, Daniel D. and Dorney, Kevin M. and Ellis, Jennifer L. and Hasovi\ifmmode \acute{c}\else \'{c}\fi{}, Elvedin and Knut, Ronny and Grychtol, Patrik and Gentry, Christian and Gopalakrishnan, Maithreyi and Zusin, Dmitriy and Dollar, Franklin J. and Tong, Xiao-Min and Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, Dejan B. and Becker, Wilhelm and Kapteyn, Henry C. and Murnane, Margaret M.},
  journal = {Phys. Rev. A},
  volume = {93},
  number = {5},
  pages = {053406},
  year = {2016},
  doi = {10.1103/PhysRevA.93.053406},
  eprint = {https://jila.colorado.edu/kmgroup/publications/pubinfo/controlling-electron-ion-rescattering-two-color-circularly-polarized},
  archive = {JILA eprint},
}
@article{milosevic_bicircular-ionization-sfa_2016,
  title = {Improved strong-field approximation and quantum-orbit theory: Application to ionization by a bicircular laser field},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D. B. and Becker, W.},
  journal = {Phys. Rev. A},
  volume = {93},
  number = {6},
  pages = {063418},
  year = {2016},
  doi = {10.1103/PhysRevA.93.063418},
}
@article{chaloupka_bicircular-double-ionization_2016,
  title = {Dynamics of Strong-Field Double Ionization in Two-Color Counterrotating Fields},
  author = {Chaloupka, Jan L. and Hickstein, Daniel D.},
  journal = {Phys. Rev. Lett.},
  volume = {116},
  number = {14},
  pages = {143005},
  year = {2016},
  doi = {10.1103/PhysRevLett.116.143005},
}
@article{kramo_bicircular-atd_2007,
  title = {Above-threshold detachment by a two-color bicircular laser field},
  author = {A Kramo and E Hasović and D B Milošević and W Becker},
  journal = {Laser Phys. Lett.},
  volume = {4},
  number = {4},
  pages = {279},
  year = {2007},
  doi = {10.1002/lapl.200610119}
}
@article{ngoko-starace_multistart-spiral-ionization_2016,
  title = {Multistart spiral electron vortices in ionization by circularly polarized {UV} pulses},
  author = {Ngoko Djiokap, J. M. and Meremianin, A. V. and Manakov, N. L. and Hu, S. X. and Madsen, L. B. and Starace, Anthony F.},
  journal = {Phys. Rev. A},
  volume = {94},
  number = {1},
  pages = {013408},
  year = {2016},
  doi = {10.1103/PhysRevA.94.013408},
  eprint = {http://digitalcommons.unl.edu/physicsstarace/218/},
  archive = {UNL eprint}
}

%%% Rescattering
@article{hasovic_rescattering-bicircular_2016,
  title = {Electron rescattering in a bicircular laser field},
  author = {E. Hasovi\'{c} and W. Becker and D. B. Milo\v{s}evi\'{c}},
  journal = {Opt. Express},
  number = {6},
  pages = {6413--6424},
  volume = {24},
  year = {2016},
  doi = {10.1364/OE.24.006413},
}

%%% NSDI
@article{eckart_bicircular-nsdi_2016,
  title = {Non-Sequential Double Ionization by Counter Rotating Circularly Polarized Two-Color Laser Fields},
  author = {S. Eckart and M. Richter and M. Kunitski and A. Hartung and J. Rist and K. Henrichs and N. Schlott and H. Kang and T. Bauer and H. Sann and L.Ph.H. Schmidt and M. Schöffler and T. Jahnke and R. Dörner},
  journal = {Phys. Rev. Lett.},
  volume = {117},
  number = {3},
  pages = {133202},
  year = {2016},
  doi = {https://doi.org/10.1103/PhysRevLett.117.133202},
  eprint = {https://arxiv.org/abs/1606.07303},
  archive = {arXiv:1606.07303},
}

%%% Laser-assisted recombination
@article{odzak_bicircular-laser-assisted-recombination_2015,
  title = {Bicircular-laser-field-assisted electron-ion radiative recombination},
  author = {Od\ifmmode \check{z}\else \v{z}\fi{}ak, S. and Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D. B.},
  journal = {Phys. Rev. A},
  volume = {92},
  number = {5},
  pages = {053416},
  year = {2015},
  doi = {10.1103/PhysRevA.92.053416},
}

%%% Spin polarization
@article{milosevic_bicircular-spin-polarization_2016,
  title = {Possibility of introducing spin into attoscience with spin-polarized electrons produced by a bichromatic circularly polarized laser field},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, D. B.},
  journal = {Phys. Rev. A},
  volume = {93},
  number = {5},
  pages = {051402},
  numpages = {6},
  year = {2016},
  doi = {10.1103/PhysRevA.93.051402},
}
@article{hartung_spin-polarization-ionization_2016,
  title = {Electron spin polarization in strong-field ionization of xenon atoms},
  author = {Alexander Hartung and Felipe Morales and Maksim Kunitski and Kevin Henrichs and Alina Laucke and Martin Richter and Till Jahnke and Anton Kalinin and Markus Schöffler and Lothar Ph. H. Schmidt and Misha Ivanov and Olga Smirnov and Reinhard Dörner},
  journal = {Nature Photon.},
  volume = {10},
  year = {2016},
  pages = {526--528},
  doi = {10.1038/nphoton.2016.109}
}




%%%%% Other methods for circular harmonics %%%%%

%%% Vodungbo waveplate
@article{vodungbo_hhg-waveplate_2011,
  title = {Polarization control of high order harmonics in the {EUV} photon energy range},
  author = {Boris Vodungbo and Anna Barszczak Sardinha and Julien Gautier and Guillaume Lambert and Constance Valentin and Magali Lozano and Gr\'{e}gory Iaquaniello and Franck Delmotte and St\'{e}phane Sebban and Jan L\"{u}ning and Philippe Zeitoun},
  journal = {Opt. Express},
  number = {5},
  pages = {4346--4356},
  volume = {19},
  year = {2011},
  doi = {10.1364/OE.19.004346},
  eprint = {https://hal-iogs.archives-ouvertes.fr/hal-00746804},
  archive = {HAL eprint},
}
@article{willems_hhg-waveplate_2015,
  title = {Probing ultrafast spin dynamics with high-harmonic magnetic circular dichroism spectroscopy},
  author = {Willems, F. and Smeenk, C. T. L. and Zhavoronkov, N. and Kornilov, O. and Radu, I. and Schmidbauer, M. and Hanke, M. and von Korff Schmising, C. and Vrakking, M. J. J. and Eisebitt, S.},
  journal = {Phys. Rev. B},
  volume = {92},
  number = {22},
  pages = {220405},
  year = {2015},
  doi = {10.1103/PhysRevB.92.220405},
  eprint = {http://www.pdi-berlin.de/fileadmin/rsync_intra4_www1/externe_Publikationen/2015/prb_92_220405_2015_01.pdf},
  archive = {PDI eprint},
}


%%% Ferré resonant harmonics
@article{ferre_circular-harmonics_2015,
  title = {A table-top ultrashort light source in the extreme ultraviolet for circular dichroism experiments},
  author = {A. Ferré and C. Handschin and M. Dumergue and F. Burgy and A. Comby and D. Descamps and B. Fabre and G. A. Garcia and R. Géneaux and L. Merceron and E. Mével and L. Nahon and S. Petit and B. Pons and D. Staedter and S. Weber and T. Ruchon and V. Blanchet and Y. Mairesse},
  journal = {Nature Photon.},
  volume = {9},
  pages = {93--98},
  year = {2015},
  doi = {10.1038/nphoton.2014.314},
}


%%% Aligned molecules, linear driver
@article{zhou_aligned-molecules-elliptical-hhg_2009,
  title = {Elliptically Polarized High-Order Harmonic Emission from Molecules in Linearly Polarized Laser Fields},
  author = {Zhou, Xibin and Lock, Robynne and Wagner, Nick and Li, Wen and Kapteyn, Henry C. and Murnane, Margaret M.},
  journal = {Phys. Rev. Lett.},
  volume = {102},
  number = {7},
  pages = {073902},
  year = {2009},
  doi = {10.1103/PhysRevLett.102.073902},
  eprint = {http://jila.colorado.edu/kmgroup/publications/pubinfo/elliptically-polarized-high-order-harmonic-emission-molecules-linearly},
  archive = {JILA eprint},
}
@article{mairesse_high-harmonic-spectroscopy_2010,
  title = {High Harmonic Spectroscopy of Multichannel Dynamics in Strong-Field Ionization},
  author = {Mairesse, Y. and Higuet, J. and Dudovich, N. and Shafir, D. and Fabre, B. and M\'evel, E. and Constant, E. and Patchkovskii, S. and Walters, Z. and Ivanov, M. Yu. and Smirnova, O.},
  journal = {Phys. Rev. Lett.},
  volume = {104},
  number = {21},
  pages = {213601},
  year = {2010},
  doi = {10.1103/PhysRevLett.104.213601},
}


%%% Atoms and elliptical driver
@article{weihe_harmonics-polarization_1995,
  title = {Polarization of high-intensity high-harmonic generation},
  author = {Weihe, F. A. and Dutta, S. K. and Korn, G. and Du, D. and Bucksbaum, P. H. and Shkolnikov, P. L.},
  journal = {Phys. Rev. A},
  volume = {51},
  number = {5},
  pages = {R3433--R3436},
  year = {1995},
  doi = {10.1103/PhysRevA.51.R3433},
}

@article{antoine_harmonics-polarization_1997,
  title = {Polarization of high-order harmonics},
  author = {Antoine, Philippe and Carr\'e, Bertrand and L'Huillier, Anne and Lewenstein, Maciej},
  journal = {Phys. Rev. A},
  volume = {55},
  number = {2},
  pages = {1314--1324},
  year = {1997},
  doi = {10.1103/PhysRevA.55.1314},
  eprint = {https://lup.lub.lu.se/search/publication/da6dd19f-d8e8-4d6e-b3d0-d755b7fd2620},
  archive = {Lund eprint},
}
@article{strelkov_harmonics-polarization-origin_2011,
  title = {Origin for Ellipticity of High-Order Harmonics Generated in Atomic Gases and the Sublaser-Cycle Evolution of Harmonic Polarization},
  author = {Strelkov, V. V. and Gonoskov, A. A. and Gonoskov, I. A. and Ryabikin, M. Yu.},
  journal = {Phys. Rev. Lett.},
  volume = {107},
  number = {4},
  pages = {043902},
  year = {2011},
  doi = {10.1103/PhysRevLett.107.043902},
}




%%% Two-colour linear, orthogonal
@article{ruiz_elliptical-pulses-two-color_2009,
  author = {Camilo Ruiz and David J Hoffmann and Ricardo Torres and Luke E Chipperfield and Jonathan P Marangos},
  title = {Control of the polarization of attosecond pulses using a two-color field},
  journal = {New J. Phys.},
  volume = {11},
  number = {11},
  pages = {113045},
  doi = {10.1088/1367-2630/11/11/113045},
  year = {2009},
}
@article{lambert_circular-hhg-cross-polarized_2015,
  title = {Towards enabling femtosecond helicity-dependent spectroscopy with high-harmonic sources},
  author = {G. Lambert and B. Vodungbo and J. Gautier and B. Mahieu and V. Malka and S. Sebban and P. Zeitoun and J. Luning, J. Perron and A. Andreev and S. Stremoukhov and F. Ardana-Lamas and A. Dax and C. P. Hauri and A. Sardinha and M. Fajardo},
  journal = {Nature Commun.},
  volume = {6},
  number = {},
  year = {2015},
  pages = {6167},
  doi = {10.1038/ncomms7167},
}
@article{stremoukhov_elliptical-harmonics_2016,
  title = {Origin of ellipticity of high-order harmonics generated by a two-color laser field in the cross-polarized configuration},
  author = {Stremoukhov, S. and Andreev, A. and Vodungbo, B. and Sali\`eres, P. and Mahieu, B. and Lambert, G.},
  journal = {Phys. Rev. A},
  volume = {94},
  number = {1},
  pages = {013855},
  year = {2016},
  doi = {10.1103/PhysRevA.94.013855},
}


%%% Quasi phase matching
@article{liu_circular-hhg-quasi-phase-matching_2012,
  title = {Optical rotation quasi-phase-matching for circularly polarized high harmonic generation},
  author = {Lewis Z. Liu and Kevin O'Keeffe and Simon M. Hooker},
  journal = {Opt. Lett.},
  number = {12},
  pages = {2415--2417},
  volume = {37},
  year = {2012},
  doi = {10.1364/OL.37.002415},
  eprint = {http://arxiv.org/abs/1303.4214},
  archive = {arXiv:1303.4214},
}


%%% Crossed beams
@article{fleischer_linear-plus-elliptical-driver_2013,
  title = {Generation of high-order harmonics with controllable elliptical polarization},
  author = {Avner Fleischer and Pavel Sidorenko and Oren Cohen},
  journal = {Opt. Lett.},
  number = {2},
  pages = {223--225},
  volume = {38},
  year = {2013},
  doi = {10.1364/OL.38.000223},
  eprint = {http://tx.technion.ac.il/~oren/papers/GenerationofHighOrderHarmonicswithControllableEllipticalPolarization_OptLett2013.pdf},
  archive = {Technion eprint},
}
@article{tong-chu_crossed-beam_1998,
  title = {Generation of circularly polarized multiple high-order harmonic emission from two-color crossed laser beams},
  author = {Tong, Xiao-Min and Chu, Shih-I},
  journal = {Phys. Rev. A},
  volume = {58},
  number = {4},
  pages = {R2656--R2659},
  year = {1998},
  doi = {10.1103/PhysRevA.58.R2656},
  eprint = {https://kuscholarworks.ku.edu/handle/1808/16067},
  archive = {KU eprint}
}


%%% Static electric fields
@article{borca_static-field-circular-harmonics_2000,
  title = {Static-Electric-Field-Induced Polarization Effects in Harmonic Generation},
  author = {Borca, Bogdan and Flegel, A. V. and Frolov, M. V. and Manakov, N. L. and Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, Dejan B. and Starace, Anthony F.},
  journal = {Phys. Rev. Lett.},
  volume = {85},
  number = {4},
  pages = {732--735},
  year = {2000},
  doi = {10.1103/PhysRevLett.85.732},
}

%%% Terahertz fields
@article{yuan_elliptical-terahertz_2013,
  title = {Single Circularly Polarized Attosecond Pulse Generation by Intense Few Cycle Elliptically Polarized Laser Pulses and Terahertz Fields from Molecular Media},
  author = {Yuan, Kai-Jun and Bandrauk, Andr\'e D.},
  journal = {Phys. Rev. Lett.},
  volume = {110},
  number = {2},
  pages = {023003},
  year = {2013},
  doi = {10.1103/PhysRevLett.110.023003},
}


%%% Nanostructures
@article{husakou_circular-harmonics-nanostructures_2011, 
  title = {Polarization gating and circularly-polarized high harmonic generation using plasmonic enhancement in metal nanostructures},
  author = {A. Husakou and F. Kelkensberg and J. Herrmann and M. J. J. Vrakking},
  journal = {Opt. Express},
  number = {25},
  pages = {25346--25354},
  volume = {19},
  month = {Dec},
  year = {2011},
  doi = {10.1364/OE.19.025346},
}


%%%%% Sundry stuff %%%%%

%%% Motivation for circular harmonics
@article{boeglin_synchrotron-circular_2010,
  title = {Distinguishing the ultrafast dynamics of spin and orbital moments in solids},
  author = {C. Boeglin and E. Beaurepaire and V. Halté and V. López-Flores and C. Stamm and N. Pontius and H. A. Dürr and J.-Y. Bigot},
  journal = {Nature},
  volume = {465},
  number = {},
  pages = {458--46},
  year = {2010},
  doi = {10.1038/nature09070},
}
@article{stamm_femtosecond-xmcd_2007,
  title = {Femtosecond modification of electron localization and transfer of angular momentum in nickel},
  author = {C. Stamm and T. Kachel and N. Pontius and R. Mitzner1 and T. Quast and K. Holldack and S. Khan1 and C. Lupulescu1 and E. F. Aziz and M. Wietstruk and H. A. Dürr and W. Eberhardt},
  journal = {Nat. Mater.},
  volume = {6},
  pages = {740--743},
  year = {2007},
  number = {},
  doi = {10.1038/nmat1985},
  eprint = {http://www.intermag.mat.ethz.ch/content/dam/ethz/special-interest/matl/intermag-dam/Publications/Papers/2007/stamm_nmat1985.pdf},
  archive = {ETH eprint},
}
@article{hergenhahn_pecd-camphor-x-ray_2004,
   author = {Hergenhahn, Uwe and Rennie, Emma E. and Kugeler, Oliver and Marburger, Simon and Lischke, Toralf and Powis, Ivan and Garcia, Gustavo},
   title = {Photoelectron circular dichroism in core level ionization of randomly oriented pure enantiomers of the chiral molecule camphor},
   journal = {J. Chem. Phys.},
   year = {2004},
   volume = {120},
   number = {10},
   pages = {4553-4556},
   doi = {10.1063/1.1651474}
}
@article{bowering_x-ray-molecular-dichroism_2001,
  title = {Asymmetry in Photoelectron Emission from Chiral Molecules Induced by Circularly Polarized Light},
  author = {B\"owering, N. and Lischke, T. and Schmidtke, B. and M\"uller, N. and Khalil, T. and Heinzmann, U.},
  journal = {Phys. Rev. Lett.},
  volume = {86},
  number = {7},
  pages = {1187--1190},
  year = {2001},
  doi = {10.1103/PhysRevLett.86.1187},
  eprint = {http://pubman.mpdl.mpg.de/pubman/faces/viewItemOverviewPage.jsp?itemId=escidoc:741600:3},
  archive = {MPG eprint},
}


%%% FEL generalities
@article{bahrdt_fel-circular-initial_1992,
   author = {Bahrdt, J. and Gaupp, A. and Gudat, W. and Mast, M. and Molter, K. and Peatman, W. B. and Scheer, M. and Schroeter, Th. and Wang, Ch.},
   title = {Circularly polarized synchrotron radiation from the crossed undulator at {BESSY}},
   journal = {Rev. Sci. Instrum.},
   year = {1992},
   volume = {63},
   number = {1},
   pages = {339-342},
   doi = {10.1063/1.1142750},
}

@article{allaria_FEL-circular_2014,
  title = {Control of the Polarization of a Vacuum-Ultraviolet, High-Gain, Free-Electron Laser},
  author = {Allaria, Enrico and Diviacco, Bruno and Callegari, Carlo and Finetti, Paola and Mahieu, Beno\^{\i}t and Viefhaus, Jens and Zangrando, Marco and De Ninno, Giovanni and Lambert, Guillaume and Ferrari, Eugenio and Buck, Jens and Ilchen, Markus and Vodungbo, Boris and Mahne, Nicola and Svetina, Cristian and Spezzani, Carlo and Di Mitri, Simone and Penco, Giuseppe and Trov\'o, Mauro and Fawley, William M. and Rebernik, Primoz R. and Gauthier, David and Grazioli, Cesare and Coreno, Marcello and Ressel, Barbara and Kivim\"aki, Antti and Mazza, Tommaso and Glaser, Leif and Scholz, Frank and Seltmann, Joern and Gessler, Patrick and Gr\"unert, Jan and De Fanis, Alberto and Meyer, Michael and Knie, Andr\'e and Moeller, Stefan P. and Raimondi, Lorenzo and Capotondi, Flavio and Pedersoli, Emanuele and Plekan, Oksana and Danailov, Miltcho B. and Demidovich, Alexander and Nikolov, Ivaylo and Abrami, Alessandro and Gautier, Julien and L\"uning, Jan and Zeitoun, Philippe and Giannessi, Luca},
  journal = {Phys. Rev. X},
  volume = {4},
  number = {4},
  pages = {041040},
  numpages = {15},
  year = {2014},
  doi = {10.1103/PhysRevX.4.041040},
}
@article{lutman_FEL-polarization_2016,
  title = {Polarization control in an X-ray free-electron laser},
  author = {Alberto A. Lutman and James P. MacArthur and Markus Ilchen and Anton O. Lindahl and Jens Buck and Ryan N. Coffee and Georgi L. Dakovski and Lars Dammann and Yuantao Ding and Hermann A. Dürr and Leif Glaser, Jan Grünert and Gregor Hartmann and Nick Hartmann and Daniel Higley and Konstantin Hirsch and Yurii I. Levashov and Agostino Marinelli and Tim Maxwell and Ankush Mitra and Stefan Moeller and Timur Osipov, Franz Peters and Marc Planas and Ivan Shevchuk and William F. Schlotter and Frank Scholz and Jörn Seltmann and Jens Viefhaus and Peter Walter and Zachary R. Wolf and Zhirong Huang and Heinz-Dieter Nuhn},
  journal = {Nature Photon.},
  volume = {10},
  number = {},
  pages = {468--472},
  year = {2016},
  doi = {10.1038/nphoton.2016.79},
}



%%% Plasma soft X-ray laser amplifier on top of Vodungbo waveplate
@article{depresseux_hhg-then-plasma-laser_2015,
  title = {Demonstration of a Circularly Polarized Plasma-Based Soft-X-Ray Laser},
  author = {Depresseux, A. and Oliva, E. and Gautier, J. and Tissandier, F. and Lambert, G. and Vodungbo, B. and Goddet, J-P. and Tafzi, A. and Nejdl, J. and Kozlova, M. and Maynard, G. and Kim, H. T. and Phuoc, K. Ta and Rousse, A. and Zeitoun, P. and Sebban, S.},
  journal = {Phys. Rev. Lett.},
  volume = {115},
  number = {8},
  pages = {083901},
  numpages = {5},
  year = {2015},
  doi = {10.1103/PhysRevLett.115.083901},
}



%%%%%%%%%%%%%% --------------- %%%%%%%%%%%%%%































%%%%%%%%%%%%%% Nondipole HHG %%%%%%%%%%%%%%

%%%%% General nondipole papers %%%%%

%%% Reiss
@article{reiss_dipole-approximation_2000,
  title = {Dipole-approximation magnetic fields in strong laser beams},
  author = {Reiss, H. R.},
  journal = {Phys. Rev. A},
  volume = {63},
  number = {1},
  year = {2000},
  pages = {013409},
  doi = {10.1103/PhysRevA.63.013409},
}
@article{reiss_limits_2008,
  title = {Limits on Tunneling Theories of Strong-Field Ionization},
  author = {Reiss, H. R.},
  journal = {Phys. Rev. Lett.},
  volume = {101},
  number = {4},
  pages = {043002},
  numpages = {4},
  year = {2008},
  doi = {10.1103/PhysRevLett.101.043002},
}

@article{reiss_relativistic_2013,
  title = {Relativistic effects in nonrelativistic ionization},
  author = {Reiss, H. R.},
  journal = {Phys. Rev. A},
  volume = {87},
  number = {3},
  pages = {033421},
  numpages = {6},
  year = {2013},
  doi = {10.1103/PhysRevA.87.033421},
}
@article{reiss_tunnelling_2014,
  author={H R Reiss},
  title={The tunnelling model of laser-induced ionization and its failure at low frequencies},
  journal={J. Phys. B: At. Mol. Opt. Phys.},
  volume={47},
  number={20},
  pages={204006},
  year={2014},
  doi = {10.1088/0953-4075/47/20/204006},
  archive = {arXiv:1403.0568},
  eprint = {http://arxiv.org/abs/1403.0568}
}


%%%%% Nondipole ionization experiments %%%%%

%%% Tunnel ionization
@article{ludwig_breakdown_2014,
  title = {Breakdown of the dipole approximation in strong-field ionization},
  journal = {Phys. Rev. Lett.},
  author = {Ludwig, A and Maurer, J and Mayer, B W and Phillips, C R and Gallmann, L and Keller, U},
  volume = {113},
  number = {24},
  year = {2014},
  pages = {243001},
  doi = {10.1103/PhysRevLett.113.243001},
}
%%% Nonsequential multiple ionization
@article{smeenk_partitioning_2011,
  title = {Partitioning of the Linear Photon Momentum in Multiphoton Ionization},
  author = {Smeenk, C. T. L. and Arissian, L. and Zhou, B. and Mysyrowicz, A. and Villeneuve, D. M. and Staudte, A. and Corkum, P. B.},
  journal = {Phys. Rev. Lett.},
  volume = {106},
  number = {19},
  pages = {193002},
  numpages = {4},
  year = {2011},
  doi = {10.1103/PhysRevLett.106.193002},
  archive = {arXiv:1102.1881},
  eprint = {http://arxiv.org/abs/1102.1881}
}



%%%%% Nondipole SFA theory %%%%%

%%% Walser
@article{walser_hhg_2000,
  title = {High Harmonic Generation Beyond the Electric Dipole Approximation},
  author = {Walser, M. W. and Keitel, C. H. and Scrinzi, A. and Brabec, T.},
  journal = {Phys. Rev. Lett.},
  volume = {85},
  number = {24},
  pages = {5082--5085},
  numpages = {0},
  year = {2000},
  doi = {10.1103/PhysRevLett.85.5082},
}

%%% Becker & Milosevic
@article{milosevic_qm-sfa-ultrahigh-hhg_2000,
  title = {Quantum-mechanical model for ultrahigh-order harmonic generation in the moderately relativistic regime},
  author = {Milo\ifmmode \check{s}\else \v{s}\fi{}evi\ifmmode \acute{c}\else \'{c}\fi{}, Dejan B. and Hu, Suxing and Becker, Wilhelm},
  journal = {Phys. Rev. A},
  volume = {63},
  number = {1},
  pages = {011403},
  year = {2000},
  doi = {10.1103/PhysRevA.63.011403},
}
@article{milosevic_relativistic_2002,
  title = {Relativistic high-order harmonic generation},
  author = {Milo\v{s}evi\'c, D B and Becker, W},
  journal = {J. Mod. Opt.},
  volume = {50},
  number = {3-4},
  year = {2002},
  pages = {375--386},
  doi = {10.1080/09500340308233537},
}
@article{milosevic_relativistic_2002-1,
  title = {Relativistic ultrahigh-order harmonic generation},
  author = {Milo\v{s}evi\'c, D B and Hu, S X and Becker, W},
  journal = {Laser Phys.},
  volume = {12},
  number = {1},
  year = {2002},
  pages = {389--397}
}

%%% Kylstra &co
@article{kylstra_photon_2002,
  title = {Photon emission by ionis interacting with short laser pulses},
  author = {Kylstra, N. J. and Potvliege, R. M. and Joachain, C. J.},
  journal = {Laser Phys.},
  series = {The {Proceedings} of the {International} {Laser} {Physics} {Workshop}},
  volume = {12},
  number = {2},
  year = {2002},
  pages = {409--414}
}
@article{kylstra_photon_2001,
  title = {Photon emission by ions interacting with short intense laser pulses: beyond the dipole approximation},
  author = {Kylstra, N J and Potvliege, R M and Joachain, C J},
  journal = {J. Phys. B: At. Mol. Opt. Phys.},
  volume = {34},
  number = {3},
  month = feb,
  year = {2001},
  pages = {L55--L61},
  doi = {10.1088/0953-4075/34/3/101},
}
@article{chirila_nondipole_2002,
  title = {Nondipole effects in photon emission by laser-driven ions},
  author = {Chiril\u{a}, C. C. and Kylstra, N. J. and Potvliege, R. M. and Joachain, C. J.},
  journal = {Phys. Rev. A},
  volume = {66},
  number = {6},
  month = dec,
  year = {2002},
  pages = {063411},
  doi = {10.1103/PhysRevA.66.063411},
}
@article{potvliege_photon_2000,
  title = {Photon emission by {He}$^+$ in intense ultrashort laser pulses},
  author = {Potvliege, R M and Kylstra, N J and Joachain, C J},
  journal = {J. Phys. B: At. Mol. Opt. Phys.},
  volume = {33},
  number = {20},
  year = {2000},
  pages = {L743},
  doi = {10.1088/0953-4075/33/20/10d},
}
@MastersThesis{chirila_analysis_2004,
  title = {Analysis of the strong field approximation for harmonic generation and multiphoton ionization in intense ultrashort laser pulses},
  type = {{PhD} {Thesis}},
  school = {Durham University},
  author = {Chiril\u{a}, Ciprian Constantin},
  year = {2004},
  url = {http://etheses.dur.ac.uk/10633/},
}
@article{chirila_interaction_2004,
  title = {Interaction of ultra-intense laser pulses with relativistic ions},
  author = {Chiril\u{a}, C C and Joachain, C J and Kylstra, N J and Potvliege, R M},
  journal = {Laser and Part. Beams},
  volume = {22},
  number = {3},
  year = {2004},
  pages = {203--206},
  doi = {10.1017/S0263034604223023},
}

%%% Others
@article{emelina_possibility_2014,
  title = {On the possibility of the generation of high harmonics with photon energies greater than 10 {keV} upon interaction of intense mid-{IR} radiation with neutral gases},
  author = {Emelina, A S and Emelin, M Yu and Ryabikin, M Yu},
  journal = {Quantum Electron.},
  volume = {44},
  number = {5},
  year = {2014},
  pages = {470},
  doi = {10.1070/QE2014v044n05ABEH015436},
}



%%% Sundry

%%% Free electron in a plane wave full solution
@article{yuce_free_2006,
  title = {Free electron in a laser field: {The} nonrelativistic solution},
  author = {Yuce, C},
  journal = {Phys. Rev. A},
  volume = {74},
  number = {6},
  year = {2006},
  pages = {062106},
  doi = {10.1103/PhysRevA.74.062106},
  eprint = {http://arxiv.org/quant-ph/0607066},
  archive = {{arXiv}:quant-ph/0607066},
}

%%% ATI beyond the dipole approximation for recollision suppreison
@article{klaiber_above-threshold_2005,
  title = {Above-threshold ionization beyond the dipole approximation},
  author = {Klaiber, M and Hatsagortsyan, K Z and Keitel, C},
  journal = {Phys. Rev. A},
  volume = {71},
  number = {3},
  year = {2005},
  doi = {10.1103/PhysRevA.71.033408},
  pages = {033408},
}

%%% Maltsev high-intensity ATI for vector optics in a tight focus
@article{maltsev_nondipole-ati_2003,
  title = {Above Threshold Ionization in Tightly Focused, Strongly Relativistic Laser Fields},
  author = {Maltsev, A. and Ditmire, T.},
  journal = {Phys. Rev. Lett.},
  volume = {90},
  number = {5},
  pages = {053002},
  year = {2003},
  doi = {10.1103/PhysRevLett.90.053002},
  eprint = {https://web2.ph.utexas.edu/~tditmire/papers/TD73.pdf},
  archive = {UT eprint}
}

%%% Theoretical interest in very long wavelengths
@article{hernandez_nine-micron_2013,
  title = {Zeptosecond High Harmonic keV X-Ray Waveforms Driven by Midinfrared Laser Pulses},
  author = {Hern\'andez-Garc\'{\i}a, C. and P\'erez-Hern\'andez, J. A. and Popmintchev, T. and Murnane, M. M. and Kapteyn, H. C. and Jaron-Becker, A. and Becker, A. and Plaja, L.},
  journal = {Phys. Rev. Lett.},
  volume = {111},
  number = {3},
  pages = {033002},
  numpages = {5},
  year = {2013},
  doi = {10.1103/PhysRevLett.111.033002},
  eprint = {http://jila.colorado.edu/kmgroup/publications/pubinfo/zeptosecond-kev-pulse-trains-and-waveforms-driven-mid-infrared-laser-pulses-0},
  archive = {JILA e-print},
}
@article{zhu_non-dipole_2016,
  title = {Non-dipole effects on high-order harmonic generation towards the long wavelength region},
  author = {Xiaosong Zhu and Zhe Wang},
  journal = {Opt. Commun.},
  volume = {365},
  number = {},
  pages = {125--132},
  year = {2016},
  doi = {10.1016/j.optcom.2015.11.072},
}

%%% TDSE beyond the dipole approximation
@article{meharg_beyond-dipole-tdse_2005,
  title = {Beyond the dipole approximation for helium and hydrogen in intense laser fields},
  author = {Meharg, K J and Parker, J S and Taylor, K T},
  journal = {J. Phys. B: At. Mol. Opt. Phys.},
  volume = {38},
  number = {3},
  year = {2005},
  pages = {237},
  doi = {10.1088/0953-4075/38/3/008},
}

%%% HHG in plasmonic structures
@article{ciappina_attosecond-nanoscale_2016,
  author = {Ciappina, M. F. and P{\'{e}}rez-Hern{\'{a}}ndez, J. A. and Landsman, A. S. and Okell, W. A. and Zherebtsov, S. and F{\"{o}}rg, B. and Sch{\"{o}}tz, J. and Seiffert, L. and Fennel, T. and Shaaran, T. and Zimmermann, T. and Chac{\'{o}}n, A. and Guichard, R. and Za{\"{\i}}r, A. and Tisch, J. W. G. and Marangos, J. P. and Witting, T. and Braun, A. and Maier, S. A. and Roso, L. and Kr{\"{u}}ger, M. and Hommelhoff, P. and Kling, M. F. and Krausz, F. and Lewenstein, M.},
  title = {Attosecond physics at the nanoscale},
  journal = {Rep. Prog. Phys.},
  volume = {80},
  number = {5},
  pages = {054401},
  year = {2017},
  doi = {10.1088/1361-6633/aa574e},
  eprint = {http://arxiv.org/abs/1607.01480},
  archive = {arXiv:1607.01480},
}



@article{chacon_hhg-plasmonic_2015,
  title = {High-order harmonic generation driven by plasmonic fields: the velocity gauge},
  author = {A Chacón and M Lewenstein and M F Ciappina},
  journal = {J. Phys: Conf. Ser.},
  volume = {635},
  number = {9},
  pages = {092106},
  year = {2015},
  doi = {10.1088/1742-6596/635/9/092106},
}






%%%%% Proposed solutions via the medium %%%%%

%%% Antisymmetric molecular orbitals
@article{fischer_enhanced_2006,
  title = {Enhanced Recollisions for Antisymmetric Molecular Orbitals in Intense Laser Fields},
  author = {Fischer, R. and Lein, M. and Keitel, C. H.},
  journal = {Phys. Rev. Lett.},
  volume = {97},
  number = {14},
  month = oct,
  year = {2006},
  pages = {143901},
  doi = {10.1103/PhysRevLett.97.143901},
  archive = {LUH eprint},
  eprint = {{http://www.itp.uni-hannover.de/~lein/papers/FLK\_PRL\_06.pdf}},
}

%%% Relativistic beams of highly charged ions
@article{avetissian_high-order_2011,
  title = {High-order harmonic generation on atoms and ions with laser fields of relativistic intensities},
  author = {Avetissian, H K and Markossian, A G and Mkrt{\-}chian, G F},
  journal = {Phys. Rev. A},
  volume = {84},
  number = {1},
  year = {2011},
  pages = {013418},
  doi = {10.1103/PhysRevA.84.013418},
}
@article{mocken_bound-mev_2004,
  author={Guido R Mocken and Christoph H Keitel},
  title={Bound atomic dynamics in the MeV regime},
  journal={J. Phys. B: At. Mol. Opt. Phys.},
  volume={37},
  number={13},
  pages={L275},
  year={2004},
  doi = {10.1088/0953-4075/37/13/L04},
}

%%% Positronium
@article{henrich_positronium_2004,
  title = {Positronium in Intense Laser Fields},
  author = {Henrich, Bj\"orn and Hatsagortsyan, Karen Z. and Keitel, Christoph H.},
  journal = {Phys. Rev. Lett.},
  volume = {93},
  number = {1},
  pages = {013601},
  year = {2004},
  doi = {10.1103/PhysRevLett.93.013601},
  eprint = {http://arxiv.org/abs/hep-th/0303188},
  archive = {arXiv:hep-th/0303188},
}
@article{hatsagortsyan_microscopic_2006,
  title = {Microscopic laser-driven high-energy colliders},
  author = {Hatsagortsyan, K. Z and M\"uller, C and Keitel, C. H},
  journal = {Europhys. Lett.},
  volume = {76},
  number = {1},
  year = {2006},
  pages = {29--35},
  doi = {10.1209/epl/i2006-10226-2},
}


%%% Muonic atoms
@article{muller_exotic_2009,
  title = {Exotic atoms in superintense laser fields},
  author = {M\"uller, C. and Shahbaz, A. and Bürvenich, T. J. and Hatsagortsyan, K. Z. and Keitel, C. H.},
  journal = {Eur. Phys. J. Spec. Top.},
  volume = {175},
  number = {1},
  year = {2009},
  pages = {187--190},
  doi = {10.1140/epjst/e2009-01139-x},
}








%%%%% Proposed solutions via the fields %%%%%

%%% Lin, Li & Becker tight focus
@article{lin_tight-focus_2006,
  title = {High-order harmonic generation in a tightly focused laser beam},
  author = {Lin, Q and Li, S and Becker, W},
  journal = {Opt. Lett.},
  volume = {31},
  number = {14},
  year = {2006},
  pages = {2163--2165},
  doi = {10.1364/OL.31.002163},
}

@article{liu_laser-guided_2009,
  title = {Laser-guided relativistic quantum dynamics},
  author = {Liu, Chengpu and Kohler, Markus C. and Hatsagortsyan, Karen Z. and M\"uller, Carsten and Keitel, Christoph H.},
  journal = {New J. Phys.},
  volume = {11},
  number = {10},
  year = {2009},
  pages = {105045},
  doi = {10.1088/1367-2630/11/10/105045},
}


%%% Counter-propagating IR beams
@article{taranukhin_relativistic_2000,
  title = {Relativistic high-order harmonic generation},
  volume = {10},
  number = {1},
  journal = {Laser Phys.},
  author = {Taranukhin, V D},
  year = {2000},
  pages = {330--336}
}
@article{taranukhin_high-order_2002,
  title = {High-order harmonic generation by atoms with traveling- and standing-wave pumps of relativistic intensity},
  author = {Taranukhin, Vladimir D. and Shubin, Nickolay Yu.},
  journal = {J. Opt. Soc. Am. B},
  volume = {19},
  number = {5},
  year = {2002},
  pages = {1132},
  doi = {10.1364/JOSAB.19.001132},
}
@article{verschl_relativistic_2007,
  title = {Relativistic classical and quantum dynamics in intense crossed laser beams of various polarizations},
  author = {Verschl, M. and Keitel, C. H.},
  journal = {Phys. Rev. ST Accel. Beams},
  volume = {10},
  number = {2},
  year = {2007},
  pages = {024001},
  doi = {10.1103/PhysRevSTAB.10.024001},
}
@article{verschl_consecutive-laser-pulses_2007,
  title={Relativistic recollisions with two consecutive laser pulses},
  author={M Verschl and C H Keitel},
  journal={J. Phys. B: At. Mol. Opt. Phys.},
  volume={40},
  number={4},
  pages={F69},
  year={2007},
  doi = {10.1088/0953-4075/40/4/F04},
}
@article{milosevic_lasers-attosecond-nuclear_2004,
  title = {How to Use Lasers for Imaging Attosecond Dynamics of Nuclear Processes},
  author = {Milosevic, Nenad and Corkum, Paul B. and Brabec, Thomas},
  journal = {Phys. Rev. Lett.},
  volume = {92},
  number = {1},
  pages = {013002},
  year = {2004},
  doi = {10.1103/PhysRevLett.92.013002},
}


%%% Counter-propagating APTs
@article{kohler_phase-matched_2011,
  title = {Phase-matched coherent hard {X}-rays from relativistic high-order harmonic generation},
  author = {Kohler, M. C. and Klaiber, M. and Hatsagortsyan, K. Z. and Keitel, C. H.},
  journal = {Europhys. Lett.},
  volume = {94},
  number = {1},
  year = {2011},
  pages = {14002},
  doi = {10.1209/0295-5075/94/14002},
}
@article{hatsagortsyan_laser_driven_2008,
  author = {Karen Z. Hatsagortsyan and Michael Klaiber and Carsten M\"{u}ller and Markus C. Kohler and Christoph H. Keitel},
  title = {Laser-driven relativistic recollisions},
  journal = {J. Opt. Soc. Am. B},
  volume = {25},
  number = {7},
  pages = {B92--B103},
  year = {2008},
  doi = {10.1364/JOSAB.25.000B92},
}

%%% Fine-tailoring of driving pulse
@article{klaiber_fully_2007,
  title = {Fully relativistic laser-induced ionization and recollision processes},
  author = {Klaiber, Michael and Hatsagortsyan, Karen Z. and Keitel, Christoph H.},
  journal = {Phys. Rev. A},
  volume = {75},
  number = {6},
  year = {2007},
  pages = {063413},
  doi = {10.1103/PhysRevA.75.063413},
}
@article{klaiber_relativistic_2006,
  title = {Relativistic ionization rescattering with tailored laser pulses},
  author = {Klaiber, Michael and Hatsagortsyan, Karen Z. and Keitel, Christoph H.},
  journal = {Phys. Rev. A},
  volume = {74},
  number = {5},
  month = nov,
  year = {2006},
  pages = {051803},
  doi = {10.1103/PhysRevA.74.051803},
  abstract = {}
}

%%% Strong magnetic fields
@article{verschl_refocussed_2007,
  title = {Refocussed relativistic recollisions},
  author = {Verschl, M. and Keitel, C. H.},
  journal = {Europhys. Lett.},
  volume = {77},
  number = {6},
  year = {2007},
  pages = {64004},
  doi = {10.1209/0295-5075/77/64004}
}

%%% XiHHG
@article{klaiber_coherent_2008,
  title = {Coherent hard x rays from attosecond pulse train-assisted harmonic generation},
  author = {Klaiber, M. and Hatsagortsyan, K. Z. and M\"uller, C. and Keitel, C. H.},
  journal = {Opt. Lett.},
  volume = {33},
  number = {4},
  year = {2008},
  pages = {411--413},
  doi = {10.1364/OL.33.000411},
  archive = {arXiv:0708.3360},
  eprint = {http://arxiv.org/abs/0708.3360}
}
@article{kohler_macroscopic_2012,
  title = {Macroscopic aspects of relativistic x-ray-assisted high-order-harmonic generation},
  author = {Kohler, Markus C. and Hatsagortsyan, Karen Z.},
  journal = {Phys. Rev. A},
  volume = {85},
  number = {2},
  year = {2012},
  pages = {023819},
  doi = {10.1103/PhysRevA.85.023819},
  eprint = {http://arxiv.org/abs/1111.4113},
  archive = {arXiv:1111.4113},
}

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