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12.temporary_ins/96.electromagnetism-in-media/05.previous-studies-overview/10.main/textbook.fr.md

+---
+title: "Overview of previous studies"
+published: true
+routable: true
+visible: false
+---
+
+<!------
+## Reflected and transmitted electromagnetic waves at interfaces
+-------->
+
+#### Chapter 1
+
+### Overview of previous studies
+
+<br>
+
+---------------
+
+#### 1.1 - Introduction
+
+##### Operators :
+
+##### The gradient
+
+##### The curl (le rotationnel)
+
+##### The Laplacian
+
+##### Divergence and curl theorems
+
+
+<br>
+
+--------------
+
+#### 1.2 - Maxwell equations
+
+##### Sources of electric field
+
+##### Lorentz Force
+
+##### Maxwell equations in vacuum
+
+*Differential form*
+
+*Integral form*
+
+*A few remarks*
+
+##### Wave equation
+
+##### Electromagnetic energy
+
+<br>
+
+--------------
+
+#### 1.3 - Solution to the wave equation & planes waves
+
+##### Phase velocity
+
+##### Group velocity & Wavepackets
+
+![]()   
+_Figure_
+
+![]()   
+_Figure 1.3 : Wavepackets resulting from the superposition of plane waves with different amplitudes._
+
+![]()   
+_Figure 1.4 : The phase and group velocities of a wavepacket composed of two plane waves_
+_with different phase velocities._
+
+##### Polarisation of a plane wave
+
+
+<br>
+
+--------------
+
+#### 1.4 - Radiation to a point charge
+
+<br>
+
+--------------
+
+