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Proceedings Paper

Theoretical study on light distribution in biological tissue with strong absorption
Author(s): Ying Liu; Yunhan Luo; Yong Ni; Jingguo Zhu; Kexin Xu
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Paper Abstract

Radiance in biological tissue with strong absorption is studied, by solving the steady-state Boltzmann transport equation in P3 approximation for an isotropy point source. We compare the diffusion solution to the total reflectance and the first two terms of the reflectance in P3 approximation respectively, and find that P3 approximation can improve the accuracy, especially in cases of strong absorption. Light radial distribution at the surface is also studied, it is shown that light centralizes in a small area as absorption tends strong. Through many calculations we have drawn a relation between radial width oflight distribution and the absorption coefficient.

Paper Details

Date Published: 12 September 2002
PDF: 8 pages
Proc. SPIE 4916, Optics in Health Care and Biomedical Optics: Diagnostics and Treatment, (12 September 2002); doi: 10.1117/12.482950
Show Author Affiliations
Ying Liu, Tianjin Univ. (China)
Yunhan Luo, Tianjin Univ. (China)
Yong Ni, Tianjin Univ. (China)
Jingguo Zhu, Tianjin Univ. (China)
Kexin Xu, Tianjin Univ. (China)

Published in SPIE Proceedings Vol. 4916:
Optics in Health Care and Biomedical Optics: Diagnostics and Treatment
Britton Chance; Mingzhe Chen; Gilwon Yoon, Editor(s)

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