NON-GAUSSIAN FLUCTUATIONS OF STOKES PARAMETERS IN SCATTERING BY SMALLPARTICLES

Calculations are presented for second-order fluctuations of Stokes par ameters that result from singly scattered, coherent, polarized radiati on by an ensemble of small spheroidal particles which are randomly ori ented in space. The form of the second-order non-Gaussian enhancements are obtained and discussed, but attention is also given to terms desc ribing amplitude fluctuations that are present in the Gaussian scatter ing regime. These terms provide a generalized Siegert relationship for polarized radiation. The possibility of using measurements of fluctua tions to characterize the particle shape is considered.