Poynting Vector in Total Internal Reflection Wave (TIR)

[neworder1]

I have the following homework problem: a monochromatic plane wave travels from medium 1 to medium 2 and experiences total internal reflection. Find the normal and parallel components of the Poynting vector, discuss the results with respect to the wave's polarization.

Now, I think that the vector just doesn't depend on the polarization, and the calculation is pretty simple, so either the problem is trivial or I don't understand something. Any hints?

 

[Antenna Guy]

I think that the vector just doesn't depend on the polarization

A circularly polarized wave changes sense upon reflection.

Regards,

Bill