Statistics of Penetration Depth of Photons Re-emitted from Irradiated Tissue
- 1 March 1989
- journal article
- research article
- Published by Taylor & Francis Ltd in Journal of Modern Optics
- Vol. 36 (3), 349-359
- https://doi.org/10.1080/09500348914550381
Abstract
We derive some statistical properties of photons emitted from bulk tissue that has been irradiated by a continuous beam of laser light. The properties include the distribution and moments of the depth reached by a photon, conditional on its having reached the surface at a (dimensionless) distance, ϱ, from the point of entry of the beam into the tissue. Theoretical predictions are made on the basis of a lattice random-walk model and are checked by simulations of the light penetration problem for a more realistic continuum model.Keywords
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