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Proceedings Paper

Scatter from subsurface defects and contaminants
Author(s): John C. Stover; Douglas E. McGary
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Paper Abstract

The Rayleigh Rice vector perturbation theory of diffraction is used to relate surface topography to scatter. In fact, this relationship allows the calculation of common surface roughness parameters (power spectrum, rms roughness, average surface wavelength, etc.) from the BRDF under the conditions that the surface is smooth, clean and front surface reflective. The theory can also be used to predict situations where the topography of such a surface will produce no scatter. That is, surface scatter can be eliminated under certain combinations ofviewing parameters. Under these conditions, the measured BRDF is the result of contaminants and subsurface defects. This paper presents previously unpublished material, discusses the theoretical basis for the effect, and gives experimental results.

Paper Details

Date Published: 1 December 1990
PDF: 5 pages
Proc. SPIE 1331, Stray Radiation in Optical Systems, (1 December 1990);
Show Author Affiliations
John C. Stover, TMA Technologies, Inc. (United States)
Douglas E. McGary, TMA Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 1331:
Stray Radiation in Optical Systems
Robert P. Breault, Editor(s)

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