1. Announcements 1/25/12 Prayer
3 students still not getting credit for clicker quizzes. Please check your scores online to make sure you’re not one of them.

2. Which plane is which Plane of incidence s vs p polarizations
Plane of the surface
boundary conditions

3. Fresnel Equations, summary
If near perpendicular (1-D problem)
For arbitrary angle
with
Intensity coefficients

4. Setting up HW problem P3.1

5. Fresnel Eqn Summary: Eqns 3.18-3.21

6. Reading Quiz Brewster’s angle occurs when qi and qt Are equal
Are in a 2:1 ratio
Sum to 90
Sum to 45

7. Plots for air (n=1) to glass (n=1.5)
s-polarization
p-polarization
field amplitudes vs q
field amplitudes vs q r t r t
intensities vs q
intensities vs q
Brewster’s angle!
Do you always get a 180 phase shift in air- glass reflections? R T R T

8. Reading Quiz Total internal reflection happens for: s-polarized light
p-polarized light
Both polarizations

9. Reading Quiz
During total internal reflection when light strikes a glass-air interface (from the glass side), the electric field in the air just outside the glass is called the:
Evanescent wave
Fluorescent wave
Optometric wave
Reduction wave
Vanishing wave

10. Total internal reflection

11. Reading Quiz
When light strikes an air-metal interface, a complex index of refraction for the metal will give rise to a complex reflection coefficient
True
False

12. Reflection from a metallic surface