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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 9 — Oct. 2, 2013

Angular distribution of diffuse reflectance from incoherent multiple scattering in turbid media

M. Gao, X. Huang, P. Yang, and G. W. Kattawar  »View Author Affiliations


Applied Optics, Vol. 52, Issue 24, pp. 5869-5879 (2013)
http://dx.doi.org/10.1364/AO.52.005869


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Abstract

The angular distribution of diffuse reflection is elucidated with greater understanding by studying a homogeneous turbid medium. We modeled the medium as an infinite slab and studied the reflection dependence on the following three parameters: the incident direction, optical depth, and asymmetry factor. The diffuse reflection is produced by incoherent multiple scattering and is solved through radiative transfer theory. At large optical depths, the angular distribution of the diffuse reflection with small incident angles is similar to that of a Lambertian surface, but, with incident angles larger than 60°, the angular distributions have a prominent reflection peak around the specular reflection angle. These reflection peaks are found originating from the scattering within one transport mean free path in the top layer of the medium. The maximum reflection angles for different incident angles are analyzed and can characterize the structure of angular distributions for different asymmetry factors and optical depths. The properties of the angular distribution can be applied to more complex systems for a better understanding of diffuse reflection.

© 2013 Optical Society of America

OCIS Codes
(290.1990) Scattering : Diffusion
(290.4210) Scattering : Multiple scattering
(290.7050) Scattering : Turbid media
(290.1483) Scattering : BSDF, BRDF, and BTDF
(010.5620) Atmospheric and oceanic optics : Radiative transfer

ToC Category:
Scattering

History
Original Manuscript: May 14, 2013
Revised Manuscript: July 12, 2013
Manuscript Accepted: July 16, 2013
Published: August 12, 2013

Virtual Issues
Vol. 8, Iss. 9 Virtual Journal for Biomedical Optics

Citation
M. Gao, X. Huang, P. Yang, and G. W. Kattawar, "Angular distribution of diffuse reflectance from incoherent multiple scattering in turbid media," Appl. Opt. 52, 5869-5879 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-52-24-5869

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