Question

ne=1.4864

Question 1 Consider a ray of 700 nm unpolarized light. a) Assume it is incident on a piece of glass with n=1.42. At what angle is the reflected light polarized? Draw the corresponding detailed diagram. b) Assume it is incident instead on a piece of calcite crystal that is cut such that the optic axis is parallel to the front face and perpendicular to the plane of incidence. Consider that the angle of incidence is 45 degrees. What is the angular separation between the ordinary and extraordinary rays within the calcite? Draw the corresponding detailed diagram. Hint 1: Draw a diagram of the geometry first, you will find that the problem is not as complicated as it might at first appear. Hint 2: Use Table 8.1 to find the principle indices of refraction, ne and no, where vl = c/ no and vſ = c/ ne.

no=1.6584

Answer 1

Air W op - Angle of - Polarisation, 90 of O4 = Angle of glass n=1.42 framission, Opt90704 = 180° 59 04-909-09 sneles law gives, 1. Sin Op = 1.42 sinot 21:42 sin (90°-Op) ] sinop=1.42 cosep a an tanap=1.42 op=tan" (1,42) = 54,8469 CS Scanned with CamScanner