ISTPC/2024/GFQC/fig/photochemistry.tex
2024-06-17 10:07:19 +02:00

121 lines
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\documentclass{standalone}
\usepackage{tikz}
\usepackage{siunitx}
\usepackage{mathtools,physics,bm,xcolor}
%\usetikzlibrary{arrows.meta}
%\tikzset{myarr/.style={
% {Triangle[width=4pt, length=4pt]}-{Triangle[width=4pt, length=4pt]},
%}}
\usepackage{tikz}
\usetikzlibrary{intersections}
\usepackage{pgfplots}
\usepgfplotslibrary{fillbetween}
\definecolor{darkgreen}{RGB}{0, 180, 0}
\begin{document}
\begin{tikzpicture}[scale=2]
% x axis
\draw [->] (0,0) -- (0,4);
\node [left] at (0,4) {Energy};
% x axis
\draw [->] (0,0) -- (4,0);
\node [below] at (4,0) {Nuclear coordinates};
% absorption
\draw [thick, blue, <->] (1,1) -- (1,3);
% emission
\draw [thick, red, <->] (2,1.5) node[along]{$E^{fluo}$} -- (2,2.5);
% adiabatic
\draw [thick, darkgreen, <->] (2.5,1) node[right]{$E^\text{adia}$} -- (2.5,2.5);
% 0-0
\draw [thick, blue, <->] (3,1.1) node[along]{$E^{0-0}$} -- (3,2.7);
% \node [right] at (2.65,-2) {$\theta$};
% \draw [thick] (-2,-2.05) node[below]{\SI{70}{\degree}} -- (-2,-1.95);
% \draw [thick] (0,-2.05) node[below]{\SI{90}{\degree}} -- (0,-1.95);
% \draw [thick] (2,-2.05) node[below]{\SI{110}{\degree}} -- (2,-1.95);
% Theta = 75 rectangular
% \node[draw,circle,minimum size=85pt,opacity=0.3,thick] (a) at (-2,-1) {};
% \node [above] at (-2,-0.2) {$D_{2h}$};
% \draw [thick] (a.35) -- (a.145) -- (a.-145) -- (a.-35) -- (a.35);
% \node[fill,draw,circle, label=above right:H, minimum size=3pt,inner sep=0pt] at (a.35) {};
% \node[fill,draw,circle, label=below right:H, minimum size=3pt,inner sep=0pt] at (a.-35) {};
% \node[fill,draw,circle, label=below left:H, minimum size=3pt,inner sep=0pt] at (a.-145) {};
% \node[fill,draw,circle, label=above left:H, minimum size=3pt,inner sep=0pt] at (a.145) {};
% \draw [dashed,thick] (-2,-1) -- (a.35);
% \draw [dashed,thick] (-2,-1) -- (a.-35);
% \draw [thick] (-1.8,-1) arc [start angle=0,end angle=35,radius=0.2];
% \draw [thick] (-1.8,-1) arc [start angle=0,end angle=-35,radius=0.2];
% \node [right] at (-1.8,-1) {$\theta$};
% Theta = 90 square
% \node[draw,circle,minimum size=85pt,opacity=0.3,thick] (b) at (0,-1) {};
% \node [above] at (0,-0.2) {$D_{4h}$};
% \draw [thick] (b.45) -- (b.135) -- (b.-135) -- (b.-45) -- (b.45);
% \node[fill,draw,circle, label=above right:H, minimum size=3pt,inner sep=0pt] at (b.45) {};
% \node[fill,draw,circle, label=below right:H, minimum size=3pt,inner sep=0pt] at (b.-45) {};
% \node[fill,draw,circle, label=below left:H, minimum size=3pt,inner sep=0pt] at (b.-135) {};
% \node[fill,draw,circle, label=above left:H, minimum size=3pt,inner sep=0pt] at (b.135) {};
% \draw [thick,myarr,dashed] (b.-135) -- (b.45);
% \node [above left] at (0,-1) {$d$};
% Theta = 105 rectangular
% \node[draw,circle,minimum size=85pt,opacity=0.3,thick] (c) at (2,-1) {};
% \node [above] at (2,-0.2) {$D_{2h}$};
% \draw [thick] (c.55) -- (c.125) -- (c.-125) -- (c.-55) -- (c.55);
% \node[fill,draw,circle, label=above right:H, minimum size=3pt,inner sep=0pt] at (c.55) {};
% \node[fill,draw,circle, label=below right:H, minimum size=3pt,inner sep=0pt] at (c.-55) {};
% \node[fill,draw,circle, label=below left:H, minimum size=3pt,inner sep=0pt] at (c.-125) {};
% \node[fill,draw,circle, label=above left:H, minimum size=3pt,inner sep=0pt] at (c.125) {};
% \draw [dashed,thick] (2,-1) -- (c.55);
% \draw [dashed,thick] (2,-1) -- (c.-55);
% \draw [thick] (2.2,-1) arc [start angle=0,end angle=55,radius=0.2];
% \draw [thick] (2.2,-1) arc [start angle=0,end angle=-55,radius=0.2];
% \node [right] at (2.2,-1) {$\theta$};
%%%%%%% Define Potential Function %%%%%%%
% \pgfmathsetmacro{\DeGS}{1}
% \pgfmathsetmacro{\RoGS}{1}
% \pgfmathsetmacro{\alphaGS}{1}
% \pgfmathsetmacro{\DeES}{1.2}
% \pgfmathsetmacro{\RoES}{1.2}
% \pgfmathsetmacro{\alphaES}{1.2}
% \pgfmathdeclarefunction{GS}{1}{%
% \pgfmathparse{%
% \DeGS*((1-exp(-\alphaGS*(#1-\RoGS)))^2-1)%
% }%
% }%
% \pgfmathdeclarefunction{ES}{1}{%
% \pgfmathparse{%
% \DeES*((1-exp(-\alphaES*(#1-\RoES)))^2-1)%
% }%
% }%
%%%%%%%% Energy Levels %%%%%%%
% \pgfmathdeclarefunction{energyGS}{1}{%
% \pgfmathparse{%
% -\DeGS+(#1+.5) - (#1+.5)^2/(1*\DeGS)
% }%
% }%
% \pgfmathdeclarefunction{energyES}{1}{%
% \pgfmathparse{%
% -\DeES+(#1+.5) - (#1+.5)^2/(1*\DeES)
% }%
% }%
%
% \begin{axis}[
% axis lines=none,
% smooth,
% no markers,
% domain=0:4,
% xmax=10,
% ymax=10,
% scale=1
% ]
% \addplot [black, samples=50, name path global=GSCurve] {GS(x)};
% \addplot [black, samples=50, name path global=ESCurve] {ES(x)};
% \end{axis}
\end{tikzpicture}
\end{document}