On the diffusion coefficient of a photon migrating through a turbid medium: a fresh look from a broader perspective
Naqvi, K. Razi
Original · EN
Does the diffusion coefficient of a photon depend on time t or the probability of absorption k? To find an answer to the question, photon transport in a medium of infinite extent is analyzed using the method of moments. It is pointed out that if D is defined so as to make it depend on t or k, it will also depend on the experimental conditions; that the parameter k which enters the stationary diffusion equation is in general different from that entering the transient version; and that a hitherto unused non-Markovian partial differential equation may be used for treating photon transport.
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