Update textbook.fr.md

12.temporary_ins/96.electromagnetism-in-media/20.reflexion-refraction-at-interfaces/10.boundary-conditions/10.main/textbook.fr.md

@@ -672,7 +672,7 @@ i.e. the reflected wave is totally reflected with a phase shift.
 
 ----------------
 
-#### Oblique incidence onto a perfect conductor
+#### 3.5 - Oblique incidence onto a perfect conductor
 
 We consider now a linearly polarised plane wave travelling in a
 perfect dielec- tric making an oblique incidence onto a perfect
@@ -689,29 +689,31 @@ incident and reflected fields.
 
 ##### Incident fields
 
-Considering the situation depicted in figure [3.13,](#_bookmark74) the
+Considering the situation depicted in figure [3.13,] the
 incident wavevector is given by:
 
 @@@@@@@@ $`\quad (equ. 3.56)`$
 
-we obtain :
+Inserting this into the incident fields, and calculating the components of the
+$`\overrightarrow{E}`$ and $`\overrightarrow{B}`$ fields form the picture (or using 
+the plane wave rule $`\overrightarrow{B}_i=\dfrac{\overrightarrow{k}_i\times \overrightarrow{E}_i}{\omega}`$)
+, we obtain :
 
 @@@@@@@@@@@@ 
  
 2there is "-" sign in front of the fields as the chosen electric field
 drawn in figure [3.13](#_bookmark74) is antiparallel to the *x* axis.
 
-chap3 TE Wave TM Wave
 
-![]()
-![]()   
+![](electromag-in-media-reflexion-transmission-fig-313a.jpg)
+![](electromag-in-media-reflexion-transmission-fig-313b.jpg)
 _Figure 3.13 : Configuration des champs e.m pour le mode TE._
 
 and
 
 @@@@@@@@ $`\quad (equ. 3.58)`$
 
-chap5 Reflected fields
+##### Reflected fields
 
 @@@@@@@@@@@@
 
@@ -732,7 +734,7 @@ and
 
 @@@@@@@@ $`\quad (equ. 3.60)`$
 
-chap5 Total fields
+##### Total fields
 
 @@@@@@@@@@
 
@@ -754,12 +756,11 @@ field is parallel to the interface.
 
 @@@@@@@@@@@@@
 
-![]()
-
-![]()
-
-
+! *Important remarks*   
+! ...
 
+![](electromag-in-media-reflexion-transmission-fig-314a.jpg)
+![](electromag-in-media-reflexion-transmission-fig-314b.jpg)
 _Figure 3.14: The total electric field_
 _amplitude of a TE wave upon oblique incident onto a perfect conductor._
 _The field has a propagation character along the *z* axis and a_
@@ -768,7 +769,8 @@ _plane are displayed. The blue and red colours represent the minimum_
 _and maximum of the field amplitude. You can easily reproduce this_
 _pattern with water waves._
 
-chap5 Poynting vector
+
+##### Poynting vector
 
 To this aim it is convenient to revert to the real notation for the
 fields: