THEORY OF DIFFUSIVE LIGHT-SCATTERING FROM DISORDERED MATERIALS

It is suggested that the measurement of the angular distribution of li ght transmitted through a thick slab of diffusively scattering materia l may provide information about the nature of the local scattering eve nts. Monte Carte simulations indicate that the angular distribution de pends on l/l, where l and l* are the true and transport mean free pat hs, respectively, and this dependence is confirmed analytically using a modified diffusion model. Preliminary experimental results for liqui d and solid foams are explicable in terms of strong forward scattering in the individual scattering events.