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17 June 1994 Development of photopolymer/liquid crystal composite materials for dynamic hologram applications
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Switchable holographic gratings are desirable for a wide range of applications in diffractive optics. Liquid crystalline materials look attractive for these devices because of their large field- induced birefringence. The combination of electro-optical liquid crystals with photopolymeric holographic materials offers a unique single system approach to the economical fabrication of switchable holograms. We report on the progress in our development of a novel system where holographic gratings are recorded in a single step process and consist of periodic polymer-dispersed liquid crystal planes. Gratings have been recorded with high diffraction efficiency (approaching 100%) and narrow angular selectivity (<1 degree(s) FWHM). The diffraction efficiency can be controlled electrically or thermally
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard L. Sutherland, Lalgudi V. Natarajan, Vincent P. Tondiglia, Timothy J. Bunning, and W. Wade Adams "Development of photopolymer/liquid crystal composite materials for dynamic hologram applications", Proc. SPIE 2152, Diffractive and Holographic Optics Technology, (17 June 1994);

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