This preview shows page 1. Sign up to view the full content.
Unformatted text preview: HW 12 Phys5406 S06 not graded
1)Light enters one face of an optical ber, as in the notes, and is to undergo total internal
re
ection in the ber so that it travels to the other end. For n=1.5 and n=1.33, what are
the largest incident angles that allow this. Why would cladding, a thin coat of transparent
material, with n=1.25 be helpful in the latter case? Why would cladding of n=1.4 not be
helpful?
2)Consider light going (a) from a medium of n=1 to n=1.33 and (b) from 1.33 to 1. Plot
the re
ection and transmission coecients for polarizations parallel and perpendicular to
the plane of indicence as a function of the angle of incidence. In the parallel polarization
case (b) note the behavior of the re
ection coecient for angles between the critical angle
and the Brewster angle. Assuming unpolarized light, that is, the amplitude of the parallel
polarization component is the same as that of the perpendicular component, plot the transmission probability as a function of the incident angle.
3)JDJ 7.2 1 ...
View Full
Document
 Spring '10
 Blecher
 Magnetism, Light

Click to edit the document details