Abstract
The transport properties of dense random media such as rutile powder layers and polyball suspensions are analyzed in visible and near infrared on the basis of experimental data on coherent backscattering, diffuse transmittance, and low-coherence interferometry. The developed technique of retrieval of the transport parameters of examined scattering media allows the evaluation of the transport mean free path and the effective refractive index of the medium without a priori knowledge of the optical properties of the scattering particles. It is found that with decreasing wavelength the value of localization parameter of the studied rutile samples abruptly drops and approaches at . This peculiarity is caused by the very large scattering efficiency of scatterers in the vicinity of the first Mie resonance.
© 2007 Optical Society of America
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