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OII.tex
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OII.tex
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\documentclass{standalone}
%\pagenumbering{gobble}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% OII energy level diagram
%
% 4S3/2 level is ground
% 2D5/2 level at 3.892 x 10**4 K
% 2D3/2 level at 3.888 x 10**4 K
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{tikz}
\usetikzlibrary{arrows,snakes}
\begin{document}
\tikzset{
level/.style={thick},
trans/.style={thick, dashed,->,shorten >=2pt,shorten <=2pt,>=stealth},
photon/.style={thick, ->, snake=snake, line after snake=1mm}
}
\begin{tikzpicture}[scale=1.0, font=\sffamily]
% Draw the energy levels
\draw[level] (7.0cm,0cm) -- (2cm,0cm) node[left] {$^4{\rm S}_{3/2}$};
\draw[level] (7.0cm,3.1cm) -- (2cm,3.1cm) node[left] {$^2{\rm D}_{3/2}$};
\draw[level] (7.0cm,2.75cm) -- (2cm,2.75cm) node[left] {$^2{\rm D}_{5/2}$};
% Draw the transitions
\draw[trans] (3.0cm,3.1cm) -- (3.0cm,0cm);
\draw[trans] (4.0cm,2.75cm) -- (4.0cm,0cm);
% Draw the photons
\draw[photon] (3.0cm,1.1cm) -- (5.0cm,1.1cm) node[below] {\small{372.6}};
\draw[photon] (4.0cm,1.8cm) -- (6.0cm,1.8cm) node[above] {\small{372.9}};
% Title
%\node at (4.5,3.45) {\Large{[OII]}};
\node at (4.5,3.45) {\Large{OII}};
\end{tikzpicture}
\end{document}