(adsbygoogle = window.adsbygoogle || []).push({}); Here is my situation:

According to ellipsometry theorythe complex reflectance ratio can be expressed as

[PLAIN]http://img255.imageshack.us/img255/2657/68578079.png [Broken]

where tan([tex]\Psi[/tex]) is the amplitude ratio upon reflection and [tex]\Delta[/tex] is a phase shift.

On the other hand, as far as I now, phase shift upon reflection is [tex]\pi[/tex] or 0, depending on materials.

the question:is the [tex]\Psi[/tex] only variable that is being changed in wide range while [tex]\Delta[/tex] is either [tex]\pi[/tex] or 0 in all cases.

Sorry for not following subforum format, I just could not fit my question in it.

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# Homework Help: Ellipsometry problem help

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