COHERENT BACKSCATTERING OF CIRCULARLY POLARIZED LIGHT FROM A DISPERSE RANDOM MEDIUM

Abstract

To describe propagation of polarized electromagnetic wave within a disperse random medium a new Monte Carlo based technique with an adopted vector formalism has been developed. The technique has been applied for simulation of coherent backscattering of circularly polarized optical radiation from a random scattering medium. It has been found that the sign of helicity of circular polarized light does not change for a medium of point-like scatterers and can change signiflcantly for the scatterers with the higher anisotropy. We conclude that the helicity ∞ip of the circular polarized light can be observed in the tissue-like media. We flnd that this phenomenon manifests itself in case of limited number of scattering events and, apparently, can be attributed to the pulse character of incident radiation rather than to the speciflc form of scattering particles.