Anomalous behavior of depolarization of light in a turbid medium

Depolarization of polarized light transmitting through a turbid medium is known to decrease with increasing value of anisotropy parameter g of the medium. We have observed that for turbid media comprised of scatterers having size parameter (X) and relative refractive index ratio (m) in the range [0.05≤(m-1)X≤2.5], although for a given value of X, a decrease in the value of m leads to higher g, depolarization also increases. This anomalous behavior arises because the depolarization characteristics of anisotropic scattering media (g≥0.7) comprised of low refractive index scatterers [(m-1)≤1,(m-1)X≤1] are much similar to that for Rayleigh scatterers