Abstract

We investigated the dependence of the diffusion coefficient on the absorption coefficient by studying the propagation of light emitted by an isotropic source in an infinitely extended medium. Comparisons with both experimental and numerical results showed that the diffusion equation gives a better description of photon migration when the diffusion coefficient is assumed to be independent of absorption.

© 1997 Optical Society of America

Photon migration through a turbid slab described by a model based on diffusion approximation. I. Theory

Daniele Contini, Fabrizio Martelli, and Giovanni Zaccanti
Appl. Opt. 36(19) 4587-4599 (1997)

Diffusion coefficient in photon diffusion theory

R. Graaff and J. J. Ten Bosch
Opt. Lett. 25(1) 43-45 (2000)

The diffusion coefficient depends on absorption

D. J. Durian
Opt. Lett. 23(19) 1502-1504 (1998)

Diffusion coefficient depends on time, not on absorption

Wei Cai, M. Xu, Melvin Lax, and R. R. Alfano
Opt. Lett. 27(9) 731-733 (2002)

Method for measuring the mean time of flight spent by photons inside a volume element of a highly diffusing medium

Giovanni Zaccanti, Lucia Alianelli, Costantino Blumetti, and Silvia Carraresi
Opt. Lett. 24(18) 1290-1292 (1999)