Describe what happens to unpolarized light incident on birefringent material when the OA i...

Describe what happens to unpolarized light incident on birefringent material when the OA is oriented as shown in each sketch in Figure 15-23. You will want to comment on the following considerations: Single or double refracted rays? Any phase retardation? Any polarization of refracted rays?

e. Which orientation(s) would you use to make a quarter-wave plate?

Figure 1. Parts (a)–(d).