We report an analysis of the statistical behavior of light scattered from electrohydrodynamic fluctuations in a nematic liquid crystal (MBBA) and a comparison with the statistics of the light scattered from a rotating ground-glass disk. In both cases, the statistical behavior changes when the dimension of the lighted spot is comparable with the correlation length of scattering inhomogeneities.
F. Scudieri and M. Bertolotti, "Irradiance statistics of light scattered by electrohydrodynamic fluctuations in MBBA," J. Opt. Soc. Am. 64, 776-778 (1974)