Applied Physics Letters · 1970 · 30 citations · 1 references
EngineeringMaterials EngineeringMaterials ScienceOptoelectronicsPhotonicsSensorsElectro-optic EffectsElectro-optic MaterialsImage SensorsOptical SensingOptical SensorsOptical Thin FilmsContrastContrast RatioOptical AbsorptionOptical Readout SystemsPockels EffectReadoutSensitivitySingle-crystal Semiconductors
The operation of an image storage panel, which is read in by means of optical absorption and read out in visible light by means of the Pockels electro-optic effect, has been demonstrated. The sensing, storing, and readout medium consists of a single-crystal film of cubic ZnS coated with a blocking contact. Performance characteristics observed to date on devices with areas between 1 and 2 cm2 are resolution of 85 line pairs/mm, continuous visible readout for 1 h, and image storage for up to 100 h. The readin sensitivity to achieve a 2:1 contrast ratio in readout is 20 erg/cm2.
1