METHOD FOR DISPERSION COMPENSATION OF LIGHT POLARISATION STATES AND HIGH-SPEED ELECTROOPTICAL MODULATOR BASED ON CHIRAL LIQUID CRYSTALS

摘要

FIELD: physics, optics.SUBSTANCE: invention relates to electronics and specifically to electrooptical devices based on liquid crystals for controlling polarisation properties and intensity of light flux, and for displaying and processing information. A high-speed liquid crystal modulator based on a chiral liquid crystal further includes at least two compensating phase plates - with anomalous and normal dispersion of birefringence, which enables to eliminate dispersion of light polarisation states which is typical for chiral liquid crystals and expand the spectral range of high-contrast light modulation across the entire visible spectrum.EFFECT: controlling polarisation properties and intensity of light flux.6 cl, 7 dwg, 1 tbl