Optical tomography of non-crystalline films by interference enhanced Raman spectroscopy.
The depth dependence of Raman spectra of a-GeS(2)-type films having a different optical thickness (lambda/4 and lambda/2) and their refractive index profile have been investigated. The model of a layered-inhomogeneous structure of films has been proposed. There have been distinguished three regions: near-surface region (up to 50 A), central part and transition film-substrate region (up to 300 A).
Gerasimov
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Physical Department, Uzhgorod State University, 294000, Uzhgorod, Ukraine.
Mitsa
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Babinets
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