Attenuation of a coherent field in a dense scattering medium

Bernard Gelebart; David Ferrand; Hans Jurgen Schnorenberg; Sigrid Avrillier

doi:10.1117/12.228690

18 December 1995 Attenuation of a coherent field in a dense scattering medium

Bernard Gelebart, David Ferrand, Hans Jurgen Schnorenberg, Sigrid Avrillier

Proceedings Volume 2626, Photon Propagation in Tissues; (1995) https://doi.org/10.1117/12.228690
Event: BiOS Europe '95, 1995, Barcelona, Spain

Abstract

A collimated light beam propagating through a turbid medium can be strongly attenuated by both absorption and scattering. It is usually assumed that, in first approximation, the attenuation depends linearly on the thickness of the scattering medium and on the scatterers concentration. This law, based on the assumption that the scatterers are uncorrelated, is in good agreement with experimental measurements when the particles density is low. However, in a dense distribution of particles, it has been shown that corrections need to be introduced. In this paper, we relate some experimental results concerning coherent propagation in latex spheres suspensions in water. These results are obtained by the use of polarization analysis and show the deviation of the attenuation from the linear law in spheres concentration. A good agreement is obtained with the Keller propagation theory in dense media.

Citation Download Citation

Bernard Gelebart, David Ferrand, Hans Jurgen Schnorenberg, and Sigrid Avrillier "Attenuation of a coherent field in a dense scattering medium", Proc. SPIE 2626, Photon Propagation in Tissues, (18 December 1995); https://doi.org/10.1117/12.228690

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