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Proceedings Paper

Incorporation of refractive index gradients in the solution of the radiative transport equation
Author(s): Justin J. Zohner; Clifton D. Clark; Taufiquar Kahn; Bonnie C. McAdoo; Robert J. Thomas
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Paper Abstract

We have proposed a modified Monte Carlo approach to the solution of the radiative transport equation which has the unique feature of incorporating refractive index gradients within a multi-layer biological tissue model. In the approach, photon trajectories are computed using a solution of the Eikonal equation (ray-tracing methods) rather than linear trajectories. The method can be applied to the specific problem of incorporating thermal lensing and other non-linear effects in turbid media (biological tissues) by coupling the radiative transport solution into heat-transfer and damage models. In turn, the method can be applied in the establishment of laser exposure limits for tissue-penetrating wavelengths, as well as a number of additional applications in imaging, spectroscopy and vision science.

Paper Details

Date Published: 25 February 2008
PDF: 9 pages
Proc. SPIE 6854, Optical Interactions with Tissue and Cells XIX, 68540V (25 February 2008); doi: 10.1117/12.765224
Show Author Affiliations
Justin J. Zohner, Air Force Research Lab. (United States)
Clifton D. Clark, Northrop Grumman (United States)
Taufiquar Kahn, Clemson Univ. (United States)
Bonnie C. McAdoo, Clemson Univ. (United States)
Robert J. Thomas, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 6854:
Optical Interactions with Tissue and Cells XIX
Steven L. Jacques; William P. Roach; Robert J. Thomas, Editor(s)

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