A collection of layered maps of the depolarisation due to diffuse layers of polyvinyl acetate are produced using a polarization-holographic Mueller matrix method approach. The topography of maps of the diffuse layers of polyvinyl acetate relates to the scattering multiplicity within the volume and the specific of polycrystalline structure. The overall depolarisation map is a convolution of the effects of these two factors. Through statistical analysis, the dependences of the magnitudes of the first to fourth order statistical moments are determined. These moments characterise the changing distributions of the depolarisation values through the volume of diffuse layers of polyvinyl acetate with different concentration. Dehydrated polyvinyl acetate layers depolarisation maps are characterised by larger average and dispersion, and less skewness and kurtosis, compared to the distributions for the diffuse "dehydrated" layers of polyvinyl acetate. This work demonstrates that a polarization-holographic Mueller matrix method can be applied to the assessment of the 3D morphology of diffuse layers of polyvinyl acetate, with applications in diagnosis – differentiation of the degree of adhesion.
The article presents the results of determining the possibilities of the polarization-singular approach to improve the efficiency of Mueller-matrix polarimetry in the differential diagnosis of polycrystalline structure of optically transparent polycarbonate layers. The relationship between the characteristic values of the elements of the Mueller matrix and polarization-singular L - states of microscopic images of polycrystalline structure of optically transparent polycarbonate layers was determined. A technique for the experimental determination of the distributions of the characteristic values of Mueller-matrix images has been developed and tested. Statistical criteria for express differential diagnosis of polycrystalline structure of optically transparent polycarbonate layers with different mechanical stresses were determined.
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