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Published August 10, 2007 | Published
Journal Article Open

Multiple-source optical diffusion approximation for a multilayer scattering medium


A method for improving the accuracy of the optical diffusion theory for a multilayer scattering medium is presented. An infinitesimally narrow incident light beam is replaced by multiple isotropic point sources of different strengths that are placed in the scattering medium along the incident beam. The multiple sources are then used to develop a multilayer diffusion theory. Diffuse reflectance is then computed using the multilayer diffusion theory and compared with accurate data computed by the Monte Carlo method. This multisource method is found to be significantly more accurate than the previous single-source method.

Additional Information

© 2007 Optical Society of America. Received 12 December 2006; revised 24 April 2007; accepted 17 May 2007; posted 22 May 2007 (Doc. ID 78010); published 9 August 2007. We thank A. Garcia-Uribe for checking the derivations. This work was supported by the National Institutes of Health grant R01 CA106728.

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