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Study of an Acrylamide-based Photopolymer for use as a Holographic Data Storage Medium
Sherif, Hosam; Naydenova, Izabela; Martin, Suzanne; McGinn, Colm; Berger, G; Denz, C; Toal, Vincent
An acrylamide-based photopolymer formulated in the Centre for Industrial and Engineering Optics has been investigated with a view to further optimisation for holographic optical storage. Series of 15 to 30 gratings were angularly multiplexed in a volume of the photopolymer layers with different thickness at a spatial frequency of 1500 lines/mm. Since the photopolymer is a saturable material, an exposure scheduling method was used to exploit the entire dynamic range of the material and allow equal strength gratings to be recorded. From this investigation the photopolymer layer’s M/# was determined with regard to the recording geometry used. The temporal stability of photopolymer layers was studied in terms of diffraction efficiency and change of the reconstructed angle due to material shrinkage. In addition, the potential of the photopolymer as a holographic data storage medium was demonstrated by recording bit data-pages.
Keyword(s): holographic material; photopolymer dynamic range; shrinkage; Optics; Physical Sciences and Mathematics; Physics
Publication Date:
2005
Type: Other
Peer-Reviewed: Unknown
Institution: Dublin Institute of Technology
Citation(s): Conference Papers
Publisher(s): Dublin Institute of Technology
File Format(s): application/pdf
First Indexed: 2011-09-29 05:45:15 Last Updated: 2017-12-14 06:41:32