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Proceedings Paper

Angle-Resolved Light Scattering From Composite Optical Surfaces
Author(s): J. M. Elson
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Paper Abstract

Described here is the derivation of an expression designed to predict the angular distribution of light scattered from composite surfaces. The scattering is assumed to be the result of microroughness, either periodic or random, present at each interface of the composite surface. The theory retains the vector nature of the fields and allows complex optical constants. The angles of incidence and scattering or diffraction are arbitrary. The number and thicknesses of the layers in the composite surface are arbitrary. The primary restriction on the validity of the theory is that the incident wavelength λ >>δ where δ represents the root mean square (rms) roughness of any interface. This restriction therefore precludes the application of this theory to high-efficiency gratings. However, low-efficiency gratings, such as those designed for beam sampler applications, fall within the validity of the theory. Also, high quality optical components, such as laser gyro mirrors, typically have rms roughness values much less than a wavelength. Various aspects and applications of this theory have been published previously.

Paper Details

Date Published: 10 February 1981
PDF: 10 pages
Proc. SPIE 0240, Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I, (10 February 1981); doi: 10.1117/12.965670
Show Author Affiliations
J. M. Elson, Naval Weapons Center (United States)

Published in SPIE Proceedings Vol. 0240:
Periodic Structures, Gratings, Moire Patterns, and Diffraction Phenomena I
C. H. Chi; E. G. Loewen; C. L. O'Bryan III, Editor(s)

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