Bi(12)SiO(20) thin-film spatial light modulator.

A thin-film spatial light modulator that uses an epitaxial film of Bi(12)SiO(20) has been developed. By using a thin epitaxial film as a sensing, storing, and modulating layer, we can attain high resolution of 27 line pairs/mm at 50% modulation. In addition, a novel device structure that adopts a low resistivity substrate enables this device to be erased quickly only by bias voltage switching.