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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 24 — Aug. 20, 2006
  • pp: 6241–6254

Unpolarized emissivity with shadow and multiple reflections from random rough surfaces with the geometric optics approximation: application to Gaussian sea surfaces in the infrared band

Christophe Bourlier  »View Author Affiliations


Applied Optics, Vol. 45, Issue 24, pp. 6241-6254 (2006)
http://dx.doi.org/10.1364/AO.45.006241


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Abstract

The emissivity from a stationary random rough surface is derived by taking into account the multiple reflections and the shadowing effect. The model is applied to the ocean surface. The geometric optics approximation is assumed to be valid, which means that the rough surface is modeled as a collection of facets reflecting locally the light in the specular direction. In particular, the emissivity with zero, single, and double reflections are analytically calculated, and each contribution is studied numerically by considering a 1D sea surface observed in the near infrared band. The model is also compared with results computed from a Monte Carlo ray-tracing method.

© 2006 Optical Society of America

OCIS Codes
(000.5490) General : Probability theory, stochastic processes, and statistics
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(260.3060) Physical optics : Infrared
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(290.5880) Scattering : Scattering, rough surfaces

History
Original Manuscript: August 8, 2005
Revised Manuscript: November 14, 2005
Manuscript Accepted: November 22, 2005

Virtual Issues
Vol. 1, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Christophe Bourlier, "Unpolarized emissivity with shadow and multiple reflections from random rough surfaces with the geometric optics approximation: application to Gaussian sea surfaces in the infrared band," Appl. Opt. 45, 6241-6254 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-24-6241


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References

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