  n
 c j
 k
Reduced phase velocity:
Absorption:  n

TE TM
Brewster’s Angle
At Brewster’s Angle, the Transverse Magnetic mode is not reflected, leaving only a Transverse Electric polarized reflection.

TE + TM
TE
“glare”

An oscillating charge radiates strongest perpendicular to the oscillation, and zero along the oscillation.
At Brewster’s angle, the refracted beam causes dipoles to oscillate along the reflected direction.

Homogeneous - same properties at all points.
opposite: inhomogeneous
Isotropic - same properties in all directions.
opposite: anisotropic
Polarizers, phase retarders, and rotators: based on anisotropy in n+j


Linear Polarizer
“dichroism”
1. The effect of causing white light to be split into colors.
2.
absorbed by different amounts (anisotropy in  ) .

Linear Polarizer polarizer analyzer transmission axis (TA)
The effect of a polarizing element is described by its Jones Matrix, which multiplies the light’s Jones Vector.


0
0
0
1


TA vertical


1
0
0
0


TA horizontal

 sin cos

2
 cos
 sin
 sin
2 cos



 TA at 