Coupling of Spatial and Temporal Coherence in Depolarized Double Scattering

Abstract
Measurements of strongly density-dependent Rayleigh linewidth of depolarized doubly scattered light are presented. A new theory based on the coupling between spatial and temporal parts of coherence is proposed to explain our data. In addition, it is shown experimentally that successive application of Van Hove space-time correlation formulation to double scattering is not valid in general.