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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 11, Iss. 10 — Oct. 1, 1994
  • pp: 2128–2138

Semi-infinite-geometry boundary problem for light migration in highly scattering media: a frequency-domain study in the diffusion approximation

Sergio Fantini, Maria Angela Franceschini, and Enrico Gratton  »View Author Affiliations


JOSA B, Vol. 11, Issue 10, pp. 2128-2138 (1994)
http://dx.doi.org/10.1364/JOSAB.11.002128


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Abstract

We have studied light migration in highly scattering media theoretically and experimentally, using the We approximation in a semi-infinite-geometry boundary condition. Both the light source and the diffusion detector were located on the surface of a semi-infinite medium. Working with frequency-domain spectroscopy, we approached the problem in three areas: (1) we derived theoretical expressions for the measured quantities spectroscopy by applying appropriate boundary conditions to the diffusion equation; (2) in frequency-domain we experimentally verified the theoretical expressions by performing measurements on a macroscopically medium in quasi-semi-infinite-geometry conditions; (3) we applied Monte Carlo methods to homogeneous the semi-infinite-geometry boundary problem. The experimental results and the confirming Monte simulate Carlo simulation show that the diffusion approximation, under the appropriate boundary conditions, accurately estimates the optical parameters of the medium.

© 1994 Optical Society of America

Citation
Sergio Fantini, Maria Angela Franceschini, and Enrico Gratton, "Semi-infinite-geometry boundary problem for light migration in highly scattering media: a frequency-domain study in the diffusion approximation," J. Opt. Soc. Am. B 11, 2128-2138 (1994)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-11-10-2128

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