Reflection and refraction of electromagnetic waves incident obliquely at plane interface.
Author: | Edgar Fuentes |
---|
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% Oblique Incidence with using basics instructions
% Author: Edgar Fuentes (Club de LaTeX UC member)
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{%
decorations.pathreplacing,%
decorations.pathmorphing%
}
\begin{document}
\pagestyle{empty}
\begin{tikzpicture}[
media/.style={font={\footnotesize\sffamily}},
wave/.style={
decorate,decoration={snake,post length=1.4mm,amplitude=2mm,
segment length=2mm},thick},
interface/.style={
% The border decoration is a path replacing decorator.
% For the interface style we want to draw the original path.
% The postaction option is therefore used to ensure that the
% border decoration is drawn *after* the original path.
postaction={draw,decorate,decoration={border,angle=-45,
amplitude=0.3cm,segment length=2mm}}},
]
% Round rectangle
\fill[gray!10,rounded corners] (-4,-3) rectangle (4,0);
% Interface
\draw[blue,line width=.5pt,interface](-4,0)--(4,0);
% Vertical dashed line
\draw[dashed,gray](0,-3)--(0,3);
% Coordinates system
\draw(0,0.15)node[above]{$x$};
\draw[<->,line width=1pt] (1,0) node[above]{$y$}-|(0,-1) node[left]{$z$};
% Incidence
\draw[->,wave]
(135:3.2cm)--(135:2.5cm)node[right]{$f^0$};
\draw[gray](0:0cm)--(135:2cm);
\path (0,0)++(113:1cm)node{$\phi$};
\draw[->](0,0.75)arc(90:135:.75cm);
% Transmission
\draw[->,wave]
(-30:2.5cm)--(-30:3.2cm)node[right]{$f^+$};
\draw[gray](0:0cm)--(-30:2cm);
\path (0,0)++(-60:1cm)node{$\theta$};
\draw[->] (0,-0.75) arc (-90:-30:.75cm);
% Reflection
\draw[->,wave]
(45:2.5cm)--(45:3.2cm)node[right]{$f^-$};
\path (0,0)++(-22:1.75cm) node{$\psi$};
\draw[gray](0:0cm)--(45:2cm);
\draw[->] (0,-1.5)arc(-90:45:1.5cm);
% Media names
\path[media] (-3,.6) node {media 1}
(-3,-.6) node {media 2};
% $x$ axis
\filldraw[fill=white,line width=1pt](0,0)circle(.12cm);
\draw[line width=.6pt] (0,0)
+(-135:.12cm) -- +(45:.12cm)
+(-45:.12cm) -- +(135:.12cm);
% Interface pointer
\draw[-latex,thick](3.2,0.5)node[right]{$\mathsf{S_{1,2}}$}
to[out=180,in=90] (3,0);
% To-paths are really useful for drawing curved lines. The above
% to path is equal to:
%
% \draw[-latex,thick](3.2,0.5)node[right]{$\mathsf{S_{1,2}}$}
% ..controls +(180:.2cm) and +(up:0.25cm) .. (3,0);
% Internally the to path is translated to a similar bezier curve,
% but the to path syntax hides the complexity from the user.
\end{tikzpicture}
\end{document}
Comments
This helped understanding how "post decoration" works - Thanks!
But shouldn't it say "medium 1,2" instead of "media 1,2" ... "media" is plural!?
thanks for sharing,I'm using latex for my thesis, some research about electromagnetic waves .This really help me a lot.
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