INFLUENCE OF INTERNAL REFLECTION ON DIFFUSIVE TRANSPORT IN STRONGLY SCATTERING MEDIA

We treat the effect of internal reflection of the propagation of waves in strongly scattering media. The theory will be applied to the recently discovered phenomenon of coherent backscattering of light and to the time-dependent transport of light intensity in reflection and in transmission geometries. For backscattering and for transmission through relatively thin slabs the influence of internal reflection can be very strong. For transmission through relatively thick slabs the effect can be accounted for by renormal-izing the diffusion coefficient with a length-scale dependent reduction factor. 1