Update 2022-02-08 17:21
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<!-- 2022-02-08 Tue 06:55 -->
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<!-- 2022-02-08 Tue 17:21 -->
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Pre-Quantum Electrodynamics</title>
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@@ -272,6 +272,10 @@ Table of contents
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</summary>
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<ul>
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<li>
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<a href="./in_t_l.html#in_t_l">Section and equation labelling</a><span class="headline-id">in.t.l</span>
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</li>
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<li>
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<a href="./in_t_c.html#in_t_c">Contextual colors</a><span class="headline-id">in.t.c</span>
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</li>
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@@ -736,7 +740,7 @@ Table of contents
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</li>
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<li>
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<a href="./emsm_esm_d.html#emsm_esm_d">Dielectrics</a><span class="headline-id">emsm.esm.d</span>
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<a href="./emsm_esm_di.html#emsm_esm_di">Dielectrics</a><span class="headline-id">emsm.esm.di</span>
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</li>
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<li>
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@@ -1656,7 +1660,7 @@ These forms for incident, reflected and transmitted wave can be substituted in t
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<p>
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From now on we will orient the axes so that \({\boldsymbol k}_I\) lies in the \(xz\) plane. This means that \({\boldsymbol k}_R\) and \({\boldsymbol k}_T\) also lie in that plane. This is the
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</p>
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<div class="core div" id="orgefbfc7d">
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<div class="core div" id="orga1858e0">
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<p>
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{\bf First law of reflection:}
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the incident, reflected and transmitted wave vectors form a plane (called the plane of incidence) which also includes the normal to the surface.
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@@ -1671,7 +1675,7 @@ Specializing (\ref{eq:RTObliquek}) to our notations, we have
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with the incidence (\(\theta_I\)) and reflection (\(\theta_R\)) angles
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and the angle of refraction (\(\theta_T\)) obey the following laws:
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</p>
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<div class="core div" id="org13fc947">
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<div class="core div" id="orgc1aaaad">
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<p>
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{\bf Law of reflection}
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\[
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@@ -1729,7 +1733,7 @@ while the third equation becomes
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\]
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Writing everything in terms of the incident amplitude, we get
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</p>
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<div class="main div" id="orgd7a540b">
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<div class="main div" id="org4da7748">
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<p>
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{\bf Fresnel's equations for reflection and transmission amplitudes (parallel case)}
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\[
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@@ -1749,7 +1753,7 @@ Amplitudes for transmitted and reflected wave: depend on angle of incidence:
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Behaviour: for \(\theta_I = 0\) we recover (\ref{Gr(9.82)}).
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For grazing waves \(\theta_I \rightarrow \pi/2\) we have that \(\alpha \rightarrow \infty\) and the wave is totally reflected. The most interesting angle is the one at which \(\alpha = \beta\) and the reflected wave has zero amplitude. This is known as
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</p>
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<div class="main div" id="orgdb6468b">
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<div class="main div" id="orge2d9787">
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<p>
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{\bf Brewster's angle {\it (at which the reflected wave amplitude vanishes)}}
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\[
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@@ -1786,7 +1790,7 @@ Of course, we get \(R + T = 1\) as expected.
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<hr><div id="postamble" class="status">
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<p class="author">Author: Jean-Sébastien Caux</p>
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<p class="date">Created: 2022-02-08 Tue 06:55</p>
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<p class="date">Created: 2022-02-08 Tue 17:21</p>
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<p class="validation"><a href="https://validator.w3.org/check?uri=referer">Validate</a></p>
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</div>
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