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Proceedings Paper

Coherence versus radiance formulations of surface scattering
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Paper Abstract

Surface scattering can be formulated in terms of coherence functions averaged over surface realizations. The resulting integrals for the average scattered intensity are superficially similar to those derived in conventional formulations like the Kirchhoff, Beckmann, and physical-optics models, but the coherence function is subject to some essential conditions, which are extensions of previously-derived conditions on the radiometric parame- ters of primary, partially-coherent sources and their propagated fields, that significantly influence the resulting scattered-intensity or BRDF solutions. The field approximation that leads to conventional radiance-like models is compared to a field approximation that leads to a particular coherence model of surface scattering, which is reviewed and verified against radiometric and atomic-force microscope (AFM) data due to a standard diffuse-gold reflector, representing apparently the first verified inverse reflectance solution for a non-contrived diffuse rough surface.

Paper Details

Date Published: 19 September 2007
PDF: 9 pages
Proc. SPIE 6682, Polarization Science and Remote Sensing III, 66820H (19 September 2007); doi: 10.1117/12.739232
Show Author Affiliations
Brian G. Hoover, Advanced Optical Technologies (United States)
Victor L. Gamiz, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 6682:
Polarization Science and Remote Sensing III
Joseph A. Shaw; J. Scott Tyo, Editor(s)

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