Incorporation of refractive index gradients in the solution of the radiative transport equation

Justin J. Zohner; Clifton D. Clark; Taufiquar Kahn; Bonnie C. McAdoo; Robert J. Thomas

doi:10.1117/12.765224

25 February 2008 Incorporation of refractive index gradients in the solution of the radiative transport equation

Justin J. Zohner, Clifton D. Clark, Taufiquar Kahn, Bonnie C. McAdoo, Robert J. Thomas

Proceedings Volume 6854, Optical Interactions with Tissue and Cells XIX; 68540V (2008) https://doi.org/10.1117/12.765224
Event: SPIE BiOS, 2008, San Jose, California, United States

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.

Citation Download Citation

Justin J. Zohner, Clifton D. Clark, Taufiquar Kahn, Bonnie C. McAdoo, and Robert J. Thomas "Incorporation of refractive index gradients in the solution of the radiative transport equation", Proc. SPIE 6854, Optical Interactions with Tissue and Cells XIX, 68540V (25 February 2008); https://doi.org/10.1117/12.765224

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