title: Polarization correlations in backscattering from media with different optical densities.
abstract: Random electromagnetic fields have a number of distinctive statistical properties that may depend on their origin. We show that, when two mutually coherent fields overlap, their individual characteristics are not completely lost. If assumptions can be made regarding the coherence properties of one of the fields, then the correlation length of the second one can be retrieved using the higher-order polarization properties of the combined field. We demonstrate experimentally that colloidal particles of different sizes can be identified based on polarization correlations measured even in situations of strong multiple scattering.
authors.forename: J
authors.initials: J
authors.lastname: Broky
authors.forename: A
authors.initials: A
authors.lastname: Dogariu