Difference between revisions of "Ellipsometer"

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=== External Links ===
=== External Links ===
*[[wikipedia:Ellipsometry]]
*[[wikipedia:Ellipsometry]]
*[[wikipedia:Polarization_(waves)]]
*[http://www.jawoollam.com/tutorial_1.html Woolam Ellipsometry Tutorial]
*[http://www.jawoollam.com/tutorial_1.html Woolam Ellipsometry Tutorial]

Revision as of 08:29, 27 September 2011

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Overview

An elipsometer is used measure the dielectric properties (including refractive index and dielectric function) of thin films.


Significance

<math>\rho</math> (a complex quantity), which is the ratio of <math>r_p</math> over <math>r_s</math>:

<math>\rho = \frac{r_p}{r_s} = \tan ( \Psi ) e^{i \Delta}</math>
<math>\Delta = \delta_p - \delta_s\,\!</math> is the phase difference
<math>\Psi\,\!</math> is the amplitude ratio
<math>N= cos(2\Psi)\,\!</math>
<math>C= sin(2\Psi) cos (\Delta)\,\!</math>
<math>S= sin(2\Psi) sin (\Delta)\,\!</math>

Operation


Video on Woolam Ellipsometer at MiRC

Video on Woolam Ellipsometer at Cornell

External Links