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Proceedings Paper

Optical diagnostics of rough surfaces by inhomogeneously polarized laser illumination
Author(s): Oksana I. Barchuck; Alexandr G. Chumakov; Vitalij N. Kurashov
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Paper Abstract

Optical method for testing scattering media has been proposed. The technique makes use of inhomogeneous polarized laser radiation as sounding one. If such radiation propagates through scattering medium, light depolarization strictly depends on its characteristics, and this effect provides a way of estimating the statistical parameters of scatterers. Degradation of spatial polarization of sounding radiation is the result of non-local formation of diffracted field. Direct diffraction problem for this model has been solved analytically, and polarization degree distribution in observation plane has been obtained in the random-phase- screen approximation. The theoretical predictions have been compared with experimentally obtained angular dependencies of polarization degree for different values of surface roughness, and the results have been controlled by independent profilometric measurements of diffuser roughness. Obtained results show quite well validity for weak diffusers.

Paper Details

Date Published: 1 December 1997
PDF: 7 pages
Proc. SPIE 3317, International Conference on Correlation Optics, (1 December 1997); doi: 10.1117/12.295697
Show Author Affiliations
Oksana I. Barchuck, Kiev Univ. (Ukraine)
Alexandr G. Chumakov, Kiev Univ. (Ukraine)
Vitalij N. Kurashov, Kiev Univ. (Ukraine)

Published in SPIE Proceedings Vol. 3317:
International Conference on Correlation Optics
Oleg V. Angelsky, Editor(s)

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