Posted: Jul 30, 2011 12:54 pm
If I ever knew that's what happened on reflection, I forgot !...
http://en.wikipedia.org/wiki/Ellipsometry
http://en.wikipedia.org/wiki/Ellipsometry
Ellipsometry measures the change of polarization upon reflection or transmission. Typically, ellipsometry is done only in the reflection setup. The exact nature of the polarization change is determined by the sample's properties (thickness, complex refractive index or dielectric function tensor).