1. Announcements 1/23/12
Prayer
SPS social

2. Reading Quiz
When a plane wave hits an interface between two different materials, which of the following wave properties will change from the incident to the transmitted wave:
Amplitude
Frequency
Direction
Two of the above
None of the above

3. Reading Quiz The Fresnel coefficients r and t (not R and T):
Describe how much electric field is reflected and transmitted at an interface
Describe how much intensity is reflected and transmitted at an interface
Must add up to 1
More than one of the above
None of the above

4. Boundary Conditions 1 2
(if H ~ B)
(if m1 = m2)

5. Reading Quiz
When a light ray hits an surface, the plane which contains the incoming, reflected, and transmitted beams, is called the “plane of _________”:
incidence
interface
intersection
reflection
refraction

6. Reading Quiz
To represent the two polarizations that are parallel and perpendicular to the place of incidence, we use the symbols:
n and w
p and q
r and u
s and p
t and v

7. Reflection/transmission for normal incidence

8. Energy/power coefficients

9. At an angle!
q1R 1
q2T 2
q1I y z
(x into board)

10. s-polarization: full treatment (handout)
q1R 1
q2T 2
q1I y z
(x into board)

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

12. Setting up HW problem P3.1