如何在 pst-optexp 中操纵镜子的透射率？

Question

我想将光束传播到每个镜子附近的探测器。我还希望传播过程能正常进行（从镜子 1 到镜子 2 再到光圈）。

\documentclass[pstricks,margin=12pt]{standalone} 
\usepackage{pst-optexp}

\begin{document}
\begin{pspicture}[showgrid=true](13,14)
\pnodes(2,5){a}(5,5){b}(5,12){c}(8,12){d}(12,12){e}
\pnodes(7,5){duno}(3,12){ddos}
\psset{mirrortype=extended, mirrordepth=0.2}
\psset{mirrorwidth=1.1}
\addtopsstyle{Beam}{fillstyle=solid, fillcolor=green!20!white}
\begin{optexp}
    \optsource[innerlabel, compname = start](a)(b){Beam}
    \mirror[compname = mi, labelangle=45](a)(b)(c){$M_1$}
    %\optdetector[](b)(duno)

    \mirror[compname = mii, labelangle=45](b)(c)(d){$M_2$} 
     \optdetector[](c)(ddos)   
    \drawwidebeam[beamwidth=0.4, stopinside]{1-3}
     %\drawwidebeam[loadbeampoints, beamdiv=-20, stopinside]{3-}
    \pinhole[beam](c)(d){$Ap_{2}$}
    \pinhole[beam](d)(e){$Ap_{2}$}
     \drawwidebeam[loadbeampoints, beamdiv=-20, stopinside]{3-}
\end{optexp}
\end{pspicture}

\end{document}

Answer 1

pst-optexp具有半透明镜（mirrortype=semitrans），其工作原理类似于分束器：绘制光束时，根据下一个组件的位置自动确定是否采用透射或反射路径。

有多种方式可以绘制部分光束。我决定先绘制主光束路径，然后绘制透射部分，跳过前面的部分，以beampathskip避免多次绘制它们。

\documentclass[pstricks,margin=12pt]{standalone} 
\usepackage{pst-optexp}

\begin{document}
\begin{pspicture}(0,4)(12,12.5)
\pnodes(2,5){a}(5,5){b}(5,10){c}(8,10){d}(12,10){e}
\pnode([Xnodesep=2]b){duno}
\pnode([offset=2]c){ddos}
\psset{mirrordepth=0.2, mirrorwidth=1.1}
\addtopsstyle{Beam}{fillstyle=solid, fillcolor=green!50!white}
\begin{optexp}
    \optsource[innerlabel, compname = start, beamwidth=0.4](a)(b){Beam}
    \mirror[compname = mi, mirrortype=semitrans, n=1, labelangle=-45](a)(b)(c){$M_1$}
    \optdetector[compname = duno](b)(duno)

    \mirror[compname = mii, n=1, mirrortype=semitrans, labelangle=45](b)(c)(d){$M_2$} 
    \optdetector[compname = ddos](c)(ddos)   
    \pinhole[compname = phi](c)(d){$Ap_{2}$}
    \pinhole[compname = phii](d)(e){$Ap_{2}$}

    \drawwidebeam[useNA=false]{start}{mi}{mii}{phi}{phii}(e)
    %
    % draw the weak transmissions to the detectors
    \newpsstyle{Beam}{linestyle=none, fillstyle=solid, fillcolor=green!20!white}
    \drawwidebeam[beampathskip=1]{start}{mi}{duno}
    \drawwidebeam[beampathskip=2]{start}{mi}{mii}{ddos}
\end{optexp}
\end{pspicture}

\end{document}