Transcription of Forouhi-Bloomer alias Amorphous Dispersion …
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Forouhi-Bloomer alias Amorphous Dispersion FormulaTN13 Spectroscopic ellipsometry (SE) is a technique based on the measurement of the relative phase change of re-flected and polarized light in order to characterize thin film optical functions and other properties. The meas-ured data are used to describe a model where each layer refers to a given material. The model usesmathematical relations called Dispersion formulae that help to evaluate the thickness and optical propertiesof the material by adjusting specific fit application note deals with the original forouhi & Bloomer Dispersion formula also known as Amor-phous (name used in the DeltaPsi2 software).
where Aj, Bj and Cj are given by: The final expression for the extinction coefficient of metals is written as: where Aj, Bj and Cj are given by: Crystalline semiconductors and metals may have sever-
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