Speckle statistics with a small number of scattering events

摘要

Simulation of processes of scattering in micro volume, which contains a small number of scatters, has been carried out. First-order statistics of statistically-inhomogeneous speckles have been analyzed. Skewness and excess of probability density function of intensity fluctuations and dependence of these characteristics on the number of scatters have been investigated. Diffraction of coherent irradiation from highly scattering medium with a small number of scattering events has been studied. The range of validity of DWS has been found.