20 January 1994 Switchable holograms recorded in liquid crystalline monomers
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Abstract
Holographic gratings recorded by photopolymerization of liquid crystalline monomers have been immediately and reversibly developed, or switched, by application of electric fields. Diffraction efficiency modulation has exceeded 200-fold, with maximum efficiency about 13% in the on state for 10 micrometers samples. Fixing of the holograms in the more efficient state has been accomplished by short exposure to a single writing beam. Microscopic images of the switching gratings recorded on videotape have provided information about grating structure and supported our proposed mechanism for the recording and switching effects.
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Jian Zhang, Jian Zhang, Christopher R. Carlen, Christopher R. Carlen, Susanna Palmer, Susanna Palmer, Michael B. Sponsler, Michael B. Sponsler, } "Switchable holograms recorded in liquid crystalline monomers", Proc. SPIE 2042, Photopolymers and Applications in Holography, Optical Data Storage, Optical Sensors, and Interconnects, (20 January 1994); doi: 10.1117/12.166309; https://doi.org/10.1117/12.166309
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