The method of scattering media probing with the use of low-coherent light source with the controllable width of emission spectrum is considered. The contrast of partially coherent speckles is suggested as the diagnostical parameter. The additional polarization discrimination of detected speckles gives the possibility to select the components of scattered field which propagate in probed medium at different distances. Experimental results obtained for weakly ordered systems characterized by non-diffuse scattering regimes are presented.
The method of scattering media probing with the use of partially coherent illumination and speckle contrast analysis is considered. The additional polarization discrimination of detected speckles gives the possibility to select the components of scattered field which propagate in probed medium at different distances. Theoretical analysis of the polarization-sensitive speckle contrast as being dependent on the coherence properties of probe light and probed medium parameters is caried out. Experimental results obtained with use of the considered technique for weakly ordered systems characterized by non-diffuse scattering regimes are presented.
The authors discuss the problem of polarized laser beam diffraction on extended rough plates with a regular structure. Using the method of equivalent sources, they arrive at the simple approximate formulae for Muller matrix elements valid for wide beams scattered by the samples with small periodic profile surfaces. For the calculation of other parameters, the widely known algorithms for the plane electromagnetic wave diffraction on the unlimitedly extended rough plates of the same structure are used.
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