Signal processing
Ellipsometry - Theory
Article REF: R6490 V1
Signal processing
Ellipsometry - Theory

Authors : Frank BERNOUX, Jean-Philippe PIEL, Bernard CASTELLON, Christophe DEFRANOUX, Jean-Hervé LECAT, Pierre BOHER, Jean-Louis STEHLÉ

Publication date: June 10, 2003 | Lire en français

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3. Signal processing

3.1 Fourier transform and sampling

Consider a signal of the form :

I (t ) = I 0 (1 + α cos 2 ω t + β sin 2 ω t )

ω being the rotation pulsation of the rotating element.

.Signal sampling
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