•Brewster’s
angle is the angle at which the reflected
light is linearly polarized
normal to the plane incidence
•At the end of the plasma tube, light can leave through a
particular angle (Brewster’s
angle) and essentially be highly polarized
•Maximum polarization occurs when the angle between
reflected and transmitted light
is 90o
•thus Ør + Øt = 90o
•since sin (90-x) = cos
x
•Snell’s provides (sin Øi / cos Øi ) = n2/n1
•
• Ør is Brewster’s angle
•