Reduction of the switching time of a liquid-crystal optical transparency

An investigation was made of the frequency characteristics of the switching on and off of the dynamic scattering of light in nematic liquid crystals in alternating electric fields. A study was made of the influence of an alternating electric field and of short field pulses on the duration of dynamic scattering. A complete image-recording cycle was less than 1.2 msec and it ended with complete relaxation of a liquid crystal to the transparent state.