Optical EngineeringOptimization and structuring of the instrument matrix for polarimetric measurements
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The analysis of polarimeter instrument matrix plays a key role in the problem of polarimeter optimization, which is widely discussed in the literature. The dimensionality and form of the instrument matrix are determined by the construction of the probing channel [polarization state generation (PSG)] and the receiving channel [polarization state analyzer (PSA)] of a polarimeter. We study the effect of structural features of the instrument matrix on error in the Mueller matrix measurement for the type of polarimeter whose PSA is a complete Stokes polarimeter. We show that the structuring of the instrument matrix due to the decreasing of number of input polarizations and optimization of the set of input polarizations result in a considerable decrease in the number of necessary measurements and an increase of the precision of the Mueller matrix element measurement.