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Proceedings Paper

Recent developments in the analysis of surface scatter phenomena
Author(s): Andrey Krywonos; James E. Harvey
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Paper Abstract

Scattering effects from rough surfaces are non-paraxial diffraction phenomena resulting from random phase variations in the reflected wavefront. Rayleigh-Rice (1951) or Beckmann-Kirchhoff (1963) theories are commonly used to predict surface scatter effects. Also, Harvey and Shack (1976) developed a linear systems formulation of surface scatter phenomena in which the scattering behavior is characterized by a surface transfer function. This treatment provided insight and understanding not readily gleaned from the two previous theories. However, smooth surface and/or paraxial approximations have severely limited the range of applicability of each of the above theoretical treatments. A new linear systems formulation of non-paraxial scalar diffraction theory applied to surface scatter phenomena resulted first in a modified Beckmann-Kirchhoff surface scattering model, then a generalized Harvey-Shack theory that produces accurate results for rougher surfaces than the Rayleigh-Rice theory and for larger incident angles than the classical Beckmann-Kirchhoff theory. These new developments simplify the analysis and understanding of stray light resulting from non-intuitive scattering behavior from rough surfaces illuminated with large incident angles.

Paper Details

Date Published: 7 September 2006
PDF: 12 pages
Proc. SPIE 6291, Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control II, 62910S (7 September 2006); doi: 10.1117/12.683671
Show Author Affiliations
Andrey Krywonos, College of Optics and Photonics, Univ. of Central Florida (United States)
James E. Harvey, College of Optics and Photonics, Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 6291:
Optical Systems Degradation, Contamination, and Stray Light: Effects, Measurements, and Control II
O. Manuel Uy; John C. Fleming; Michael G. Dittman, Editor(s)

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