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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 2 — Jan. 10, 2010
  • pp: 153–162

Depolarization of light in turbid media: a scattering event resolved Monte Carlo study

Xinxin Guo, Michael F. G. Wood, Nirmalya Ghosh, and I. Alex Vitkin  »View Author Affiliations

Applied Optics, Vol. 49, Issue 2, pp. 153-162 (2010)

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Details of light depolarization in turbid media were investigated using polarization-sensitive Monte Carlo simulations. The surviving linear and circular polarization fractions of photons undergoing a particular number of scattering events were studied for different optical properties of the turbid media. It was found that the threshold number of photon scattering interactions that fully randomize the incident polarization (defined here as < 1 % surviving polarization fraction) is not a constant, but varies with the photon detection angle. Larger detection angles, close to backscattering direction, show lower full depolarization threshold number for a given set of sample’s optical properties. The Monte Carlo simulations also confirm that depolarization is not only controlled by the number of scattering events and detection geometry, but is also strongly influenced by other factors such as anisotropy g, medium linear birefringence, and the polarization state of the incident light.

© 2010 Optical Society of America

OCIS Codes
(170.7050) Medical optics and biotechnology : Turbid media
(260.5430) Physical optics : Polarization
(290.4210) Scattering : Multiple scattering

ToC Category:

Original Manuscript: July 8, 2009
Revised Manuscript: November 23, 2009
Manuscript Accepted: November 24, 2009
Published: January 7, 2010

Virtual Issues
Vol. 5, Iss. 3 Virtual Journal for Biomedical Optics

Xinxin Guo, Michael F. G. Wood, Nirmalya Ghosh, and I. Alex Vitkin, "Depolarization of light in turbid media: a scattering event resolved Monte Carlo study," Appl. Opt. 49, 153-162 (2010)

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