Metal-insulator-semiconductor-liquid crystal structures. Influence of parameters of control signals on characteristics of spatial modulation of light

An investigation was made of spatial modulation of light in structures formed from an insulated semiconductor and a liquid crystal. It was found that the modulation parameters (sensitivity and resolution) were influenced strongly by the accumulation of carriers in the semiconductor when the structure was subjected to an alternating voltage. A resolution of about 100 lines/mm and a sensitivity down to 10^–9 J/cm² were achieved for a structure with gallium arsenide as the semiconductor.