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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 16, Iss. 5 — May. 1, 1999
  • pp: 1066–1071

Photon diffusion coefficient in an absorbing medium

Raphael Aronson and Noel Corngold  »View Author Affiliations

JOSA A, Vol. 16, Issue 5, pp. 1066-1071 (1999)

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A number of investigators have recently claimed, based on both analysis from transport theory and transport-theory-based Monte Carlo calculations, that the diffusion coefficient for photon migration should be taken to be independent of absorption. We show that these analyses are flawed and that the correct way of extracting diffusion theory from transport theory gives an absorption-dependent diffusion coefficient. Experiments by two different sets of investigators give conflicting results concerning whether the diffusion coefficient depends on absorption. The discrepancy between theory and the earlier set of experiments poses an interesting challenge.

© 1999 Optical Society of America

OCIS Codes
(030.5620) Coherence and statistical optics : Radiative transfer
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.5280) Medical optics and biotechnology : Photon migration
(290.1990) Scattering : Diffusion

Original Manuscript: June 26, 1998
Revised Manuscript: December 11, 1998
Manuscript Accepted: December 21, 1998
Published: May 1, 1999

Raphael Aronson and Noel Corngold, "Photon diffusion coefficient in an absorbing medium," J. Opt. Soc. Am. A 16, 1066-1071 (1999)

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