21 April 2017 New photoresponsible polymers based on the polymerisable azo-diphenyldiacetylene (AZ-DPDA) liquid crystalline monomers for rewritable holograms (Conference Presentation)
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Abstract
The development of high performance and large area photoresponsive materials for hologram have been one of the great challenges in order to realize holographic 3D display technology which needs no special eyewear. Desirable hologram materials should provide the high diffraction efficiency, fast response, high resolution, stable and reversible storage, low-energy consuming in the recording and reading processes as well as easy mass production. Azobenzene-containing polymers has been recognized as one of the promising candidate materials for holography because they can modulate effectively due to the photosensitivity and reversibility of azo moieties. In addition, polymer systems have several advantages such as simple fabrication, flexibility, thermal stability, and large scale production. It has been reported that highly birefringent azotolan-containing liquid crystalline polymer (LCP) film can induce a large change in refractive index upon exposure to actinic light. Analogously, we prepared new photochromic polymers based on the polymerisable liquid crystalline acrylate monomers (RMs) containing azo and highly birefringent diphenyldiacetylen (DPDA) mesogenic units connected directly. Evaluation of new polymers for rewritable hologram media will be discussed.
Conference Presentation
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Jinsoo Kim, Jae-Won Ka, Yun Ho Kim, Yeong-Joon Kim, and Young Beom Seo "New photoresponsible polymers based on the polymerisable azo-diphenyldiacetylene (AZ-DPDA) liquid crystalline monomers for rewritable holograms (Conference Presentation)", Proc. SPIE 10125, Emerging Liquid Crystal Technologies XII, 101250K (21 April 2017); doi: 10.1117/12.2253315; https://doi.org/10.1117/12.2253315
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