Computer-generated electrically switchable holographic composites
- 20 April 1995
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- p. 182-193
- https://doi.org/10.1117/12.207469
Abstract
Electrically switched holographic composites (ESHC) based on Polaroid photopolymer materials were described previously using optically generated holograms. These techniques have now been extended to include computer generated holograms. A highly accurate laser writing engine was utilized to write multi-phase level diffractive gratings in Polaroid type DMP-128 photopolymer film. After compositing with liquid crystals and applying an electric field, the diffraction efficiency of the elements could be switched or tuned continuously over approximately a 100:1 range of diffraction efficiencies, opening a new range of interconnect applications.Keywords
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