THREE-CHANNEL SCHEME FOR MEASURING PHASE SHIFT UPON REFLECTION FROM AN OPTICALLY ANISOTROPIC LIQUID CRYSTAL MATRIX
V.A. Shvets1, I.A. Azarov1, A.E. Borisova1,2, E.K. Bagochus1, E.V. Spesivtsev1, S.V. Mutilin1
1Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk State Technical University, Novosibirsk, Russia
Keywords: polarimetry, liquid crystal, phase modulator, LCOS matrix
Abstract
A three-channel static polarimeter scheme designed for distributing spatial phase light modulators based on liquid crystals is presented. The interaction of light reflected from the modulator with the device's optical elements is calculated, and analytical expressions for the light intensity in each channel are obtained. A solution to the inverse problem of determining phase transitions on the matrix elements is presented. Experimental results demonstrating the transformation of a control signal into a phase transition are obtained.
|
