Angular spectrum of light transmitted through turbid media: theory and experiment

Measurements of the angular spectrum of light transmitted through turbid slabs with monodispersions of polystyrene spheres have been performed. The results obtained are compared with theoretical calculations, based on the small-angle approximation of the radiative transfer theory. The experimental data and the theoretical results coincide with a high accuracy, which allows us to develop the laser diffraction spectroscopy of optically thick light-scattering layers. [C] 2001 Optical Society of America OCIS codes: 010.1290, 010.1110, 010.3310, 010.4450, 120.5820, 290.4210.