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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 17, Iss. 12 — Jun. 15, 1978
  • pp: 1911–1922

Aureole radiance field about a source in a scattering–absorbing medium

Alexander S. Zachor  »View Author Affiliations


Applied Optics, Vol. 17, Issue 12, pp. 1911-1922 (1978)
http://dx.doi.org/10.1364/AO.17.001911


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Abstract

A technique is described for computing the aureole radiance field about a point source in a medium that absorbs and scatters according to an arbitrary phase function. When applied to an isotropic source in a homogenous medium, the method uses a double-integral transform which is evaluated recursively to obtain the aureole radiances contributed by successive scattering orders, as in the Neumann solution of the radiative transfer equation. The normalized total radiance field distribution and the variation of flux with field of view and range are given for three wavelengths in the uv and one in the visible, for a sea-level model atmosphere assumed to scatter according to a composite of the Rayleigh and modified Henyey-Greenstein phase functions. These results have application to the detection and measurement of uncollimated uv and visible sources at short ranges in the lower atmosphere.

© 1978 Optical Society of America

History
Original Manuscript: November 1, 1977
Published: June 15, 1978

Citation
Alexander S. Zachor, "Aureole radiance field about a source in a scattering–absorbing medium," Appl. Opt. 17, 1911-1922 (1978)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-17-12-1911

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