(a) For a normal incidence upon the dielectric-dielectric interface for which ?1 = ?2 = ?o we define R and T as the reflection and transmission coefficients for average powers, i.e., Pr,ave = RPi,ave and Pt,ave = TPi,ave. Prove thatwhere n1, and n2 are the reflective indices of the media.(b) Determine the ratio n1/n2 so that the reflected and the transmitted waves have the same average power.

Transcribed Image Text:

4n n2 (n, + na) and n2 T = n, + n2 )-