7 May 2013 Two-wavelength volume holographic recording in thick PQ-doped PMMA photopolymer
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We report holographic recording in thick phenanthrenequinone-doped poly(methyl methacrylate) (PQ/PMMA) photopolymer material via the two-wavelength technique. By using gating light at 325 nm and writing light at 647 nm two-wavelength holographic recording is achieved. Non-volatile readout of a holographic image under 24 hours continuous reconstruction is demonstrated. A four-level modeling for the photochemical procedures of the two-wavelength holographic recording is proposed, and dynamic behaviors of the holograms are illustrated. A planar integrated optical correlator system is constructed by selective writing of holographic optical elements via two-wavelength holographic recording on a photopolymer disk.
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June Hua Lin, Ken Y. Hsu, Shiuan Huei Lin, Vera M Gospodinova, "Two-wavelength volume holographic recording in thick PQ-doped PMMA photopolymer", Proc. SPIE 8776, Holography: Advances and Modern Trends III, 877602 (7 May 2013); doi: 10.1117/12.2017315; https://doi.org/10.1117/12.2017315

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