Noninvasive measurement of scattering anisotropy in turbid materials by nonnormal incident illumination
Optics Letters, Vol. 31, Issue 7, pp. 936-938 (2006)
http://dx.doi.org/10.1364/OL.31.000936
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Abstract
Many existing methods for the recovery of optical parameters from turbid materials rely on the diffusion approximation, which does not permit the recovery of the degree of anisotropy in the scattering phase function. These methods also make the explicit assumption that light is normally incident at the top surface of the material. We demonstrate a steady-state imaging technique that uses nonnormally incident light to determine anisotropy parameter g by fitting Monte Carlo simulation results to high dynamic range images of the intensity profiles of samples. The proposed method is simpler than existing methods and does not rely on thin samples to produce reasonable results.
© 2006 Optical Society of America
OCIS Codes
(110.7050) Imaging systems : Turbid media
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.7050) Medical optics and biotechnology : Turbid media
(290.1990) Scattering : Diffusion
(290.5820) Scattering : Scattering measurements
(290.7050) Scattering : Turbid media
ToC Category:
Medical Optics and Biotechnology
History
Original Manuscript: October 24, 2005
Revised Manuscript: December 28, 2005
Manuscript Accepted: January 2, 2006
Virtual Issues
Vol. 1, Iss. 5 Virtual Journal for Biomedical Optics
Citation
Neel Joshi, Craig Donner, and Henrik Wann Jensen, "Noninvasive measurement of scattering anisotropy in turbid materials by nonnormal incident illumination," Opt. Lett. 31, 936-938 (2006)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-31-7-936
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