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Proceedings Paper

Experimental study of a reason for depolarization of laser light scattered from a rough surface
Author(s): Vladimir Ya. Mendeleev; Sergey N. Skovorod'ko
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Paper Abstract

The study is carried out for a unidirectional rough steel surface with rms roughness of 1.77 micrometers and rms slope of roughness of 0.135 rad. The degree of depolarization of scattered laser light with wavelength of 0.6328 micrometers was measured with a polarometer in the specular direction in the angular range of 30 - 80 degree(s). For laser light linearly polarized at a 45 degree(s) angle to the plane of incidence, the dependence of the measured degree of depolarization on angle of incidence has one maximum equal to 0.1 and an angle of incidence corresponding to the maxima is 70 degree(s). It is found experimentally that the reason for the measured depolarization is spatial variations of the azimuth and the ellipticity of the fully polarized scattered light within a polarometer aperture. Computer simulation of the scattering from a one-dimensional rough surface satisfactorily describing the dependence of the measured degree of depolarization on angle of incidence up to 70 degree(s) inclusive shows the single scattering makes the main contribution to the dependence of the measured degree of depolarization on angle of incidence.

Paper Details

Date Published: 5 February 2002
PDF: 6 pages
Proc. SPIE 4607, Selected Papers from Fifth International Conference on Correlation Optics, (5 February 2002); doi: 10.1117/12.455200
Show Author Affiliations
Vladimir Ya. Mendeleev, Institute for High Temperatures (Russia)
Sergey N. Skovorod'ko, Institute for High Temperatures (Russia)


Published in SPIE Proceedings Vol. 4607:
Selected Papers from Fifth International Conference on Correlation Optics

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