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Optimization of a thick polyvinyl alcohol–acrylamide photopolymer for data storage using a combination of angular and peristrophic holographic multiplexing

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Abstract

The capability of polyvinyl alcohol–acrylamide photopolymer materials to obtain angularly multiplexed holographic gratings has been demonstrated [Appl. Phys. B 76, 851 (2003)]. A combination of two multiplexing methods—peristrophic and angular multiplexing—is used to record 60 holograms. An exposure schedule method is used to optimize the capability of the photopolymerizable holographic material and obtain holograms with a higher, more uniform diffraction efficiency. In addition, because of this exposure schedule method, the entire dynamic range (M#) of the material will be exploited, obtaining values of approximately M#9 in layers approximately 800μm thick.

© 2006 Optical Society of America

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