Fermat Photons: Paths Propagation and Imaging in Turbid Media

Abstract

Photon diffusion on the velocity sphere describes photon migration in highly forward scattering media. The non-Euclidean diffusion leads to the concept of the most favorable photon paths described by Generalized Fermat Principle for turbid media. Experimental results are compared to theoretical predictions. Application of Fermat photons to imaging will be discussed.