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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 5 — Apr. 29, 2014

Monte Carlo model of the depolarization of backscattered linearly polarized light in the sub-diffusion regime

Andrew J. Gomes, Herbert C. Wolfsen, Michael B. Wallace, Frances K. Cayer, and Vadim Backman  »View Author Affiliations

Optics Express, Vol. 22, Issue 5, pp. 5325-5340 (2014)

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We present a predictive model of the depolarization ratio of backscattered linearly polarized light from spatially continuous refractive index media that is applicable to the sub-diffusion regime of light scattering. Using Monte Carlo simulations, we derived a simple relationship between the depolarization ratio and both the sample optical properties and illumination-collection geometry. Our model was validated on tissue simulating phantoms and found to be in good agreement. We further show the utility of this model by demonstrating its use for measuring the depolarization length from biological tissue in vivo. We expect our results to aid in the interpretation of the depolarization ratio from sub-diffusive reflectance measurements.

© 2014 Optical Society of America

OCIS Codes
(290.5855) Scattering : Scattering, polarization
(170.6935) Medical optics and biotechnology : Tissue characterization

ToC Category:

Original Manuscript: September 12, 2012
Revised Manuscript: October 27, 2012
Manuscript Accepted: November 15, 2012
Published: February 28, 2014

Virtual Issues
Vol. 9, Iss. 5 Virtual Journal for Biomedical Optics

Andrew J. Gomes, Herbert C. Wolfsen, Michael B. Wallace, Frances K. Cayer, and Vadim Backman, "Monte Carlo model of the depolarization of backscattered linearly polarized light in the sub-diffusion regime," Opt. Express 22, 5325-5340 (2014)

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