Volume holographic image storage and electro-optical readout in a polymer-dispersed liquid-crystal film
- 1 June 1995
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 20 (11), 1325-1327
- https://doi.org/10.1364/ol.20.001325
Abstract
We report storage and electrical switching of holographic image data in an economical polymer-dispersed liquid-crystal material. The hologram is recorded in a fast, single-step process and can be reversibly erased and restored repeatedly by the application of fields of approximately 10–15 V/μm, with a response time of 22 μs and a relaxation time of 42 μs. Simple (quasi-sinusoidal) holographic transmission gratings also are studied with switching fields of μm and with response and relaxation times of 25 and 44 μs, respectively.Keywords
This publication has 8 references indexed in Scilit:
- Electrically switchable volume gratings in polymer-dispersed liquid crystalsApplied Physics Letters, 1994
- Electrically switchable diffractive optical element for image processingOptics Letters, 1994
- Bragg gratings in an acrylate polymer consisting of periodic polymer-dispersed liquid-crystal planesChemistry of Materials, 1993
- Switchable liquid crystalline photopolymer media for holographyJournal of the American Chemical Society, 1992
- Response times and voltages for PDLC light shuttersLiquid Crystals, 1989
- Field controlled light scattering from nematic microdropletsApplied Physics Letters, 1986
- Microfabrication and evaluation of diffractive optical filters prepared by reactive sputter etchingJournal of Applied Physics, 1979
- Diffraction gratings for color filtering in the zero diffraction orderApplied Optics, 1978