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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 25, Iss. 15 — Aug. 1, 1986
  • pp: 2530–2536

Extinction cross sections and albedos for particles with very rough surfaces

Ezekiel Bahar, Swapan Chakrabarti, and Mary Ann Fitzwater  »View Author Affiliations


Applied Optics, Vol. 25, Issue 15, pp. 2530-2536 (1986)
http://dx.doi.org/10.1364/AO.25.002530


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Abstract

Using the full wave approach, the scattering cross sections for finitely conducting particles with very rough surfaces are expressed as weighted sums of specular point (physical optics) and diffuse scattering cross sections. Through judicious use of the forward-scattering theorem and the observation that for large particles the forward-scattered “shadow forming wave is the same for all surfaces which have the same shadow line,” the albedos and the extinction cross sections for particles with rough surfaces are evaluated. These computations are essential to solve the equation of radiative transfer for the specific intensities (Stokes parameters) in media consisting of random distributions of particles with rough surfaces. The particle surface roughness has a significant effect on the diffuse specific intensities.

© 1986 Optical Society of America

History
Original Manuscript: February 28, 1986
Published: August 1, 1986

Citation
Ezekiel Bahar, Swapan Chakrabarti, and Mary Ann Fitzwater, "Extinction cross sections and albedos for particles with very rough surfaces," Appl. Opt. 25, 2530-2536 (1986)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-25-15-2530

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