REVERSIBLE ULTRAVIOLET IMAGING WITH LIQUID CRYSTALS
- 15 July 1970
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 17 (2), 51-53
- https://doi.org/10.1063/1.1653306
Abstract
Light‐scattering images are recorded in nearly real‐time in nematic liquid crystals. The material is activated by ultraviolet exposure of a photoconductive ZnS layer on one of the Nesa electrodes with which an electrical field is applied. In a room‐temperature nematic liquid crystal, an incident ultraviolet exposure pulse of 0.1 mJ/cm2 produces an image in a risetime of 0.1 sec, and it decays in 2.5 sec. Long‐lived images can be stored in nematic/cholesteric mixtures.Keywords
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