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Anisotropic diffusion of light in a strongly scattering material
Patrick M Johnson1, Boris P J Bret, Jaime Gómez Rivas
1Van der Waals-Zeeman Instituut, Universiteit van Amsterdam, The Netherlands. P.M.Johnson@phys.uu.nl
Physical Review Letters
|December 18, 2002
Abstract:
Light transport in a strongly scattering, strongly anisotropic material is studied experimentally using both static and time-resolved techniques. Both the static and the dynamic results are well characterized by a diffusion equation with an anisotropic diffusion tensor and a scalar absorption term. Light diffuses 4.0 times faster along the uniaxial axis of the material compared with diffusion in the orthogonal directions.