In some books the reflection and transmission coefficients for parallel polarization are d...

In some books the reflection and transmission coefficients for parallel polarization are defined as the ratios of the amplitude of the tangential components of the reflected andtransmitted E fields, respectively, to the amplitude of the tangential component of theincident E field. Let the coefficients defined in this manner be designated  respectively.

a) Find in terms of n1, n2, ϕi and ϕit and compare them with and tm in Eqs. (8-221) and (8-222).

---

b) Find the relation between , and compare it with Eq. (8-223).