Full characterization of anisotropic diffuse light.
We demonstrate a method for fully characterizing diffuse transport of light in a statistically anisotropic opaque material. Our technique provides a simple means of determining all parameters governing anisotropic diffusion. Anisotropy in the diffusion constant, the mean free path, and the extrapolation length are, for the first time, determined independently. These results show that the anisotropic diffusion model is effective for modeling transport in anisotropic samples, providing that the light is allowed to travel several times the transport mean free path from the source.
FOM Institute for Atomic and Molecular Physics AMOLF, Kruislaan 407 Amsterdam, The Netherlands. p.johnson@amolf.nl
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PM
Johnson
Sanli
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Faez
Ad
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Lagendijk
D000465:Algorithms; D016880:Anisotropy; D002627:Chemistry, Physical / Q000379:methods; D004058:Diffusion; D004867:Equipment Design; D008027:Light; D015233:Models, Statistical; D009010:Monte Carlo Method; D055095:Optics and Photonics; D010777:Photochemistry / Q000379:methods; D016062:Porosity; D012542:Scattering, Radiation