A novel technique, which is a PSA (polarizer-sample-analyzer) full-field variation of the dynamic Fourier photopolarimetry, is developed and experimentally demonstrated for imaging three optical parameters in integrated photoelasticity. Unlike other experimental methods, earlier proposed for this purpose, which measure characteristic retardation 2Δ, primary θ and secondary γ characteristic direction, the current technique returns relative retardation δ, azimuth θ and ellipticity ε angle. The advantages of the new technique over the methods, suggested for measuring characteristic parameters in providing better accuracy and using simpler setup have been proved experimentally. Furthermore, the given technique is self-contained and provides a robust phase unwrapping by processing the π-module phase maps, obtained at two wavelengths.
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