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Proceedings Paper

Study of an acrylamide-based photopolymer for use as a holographic data storage medium
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Paper Abstract

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.

Paper Details

Date Published: 8 June 2005
PDF: 9 pages
Proc. SPIE 5827, Opto-Ireland 2005: Photonic Engineering, (8 June 2005); doi: 10.1117/12.604562
Show Author Affiliations
H. Sherif, Dublin Institute of Technology (Ireland)
I. Naydenova, Dublin Institute of Technology (Ireland)
S. Martin, Dublin Institute of Technology (Ireland)
C. McGinn, Dublin Institute of Technology (Ireland)
G. Berger, Wilhelms-Univ. Muenster (Germany)
C. Denz, Wilhelms-Univ. Muenster (Germany)
V. Toal, Dublin Institute of Technology (Ireland)


Published in SPIE Proceedings Vol. 5827:
Opto-Ireland 2005: Photonic Engineering
Thomas J. Glynn; John T. Sheridan; Brian W. Bowe; Ronan F. O'Dowd; Gerard M. O'Connor; Aidan J.H. Flanagan; Gerard D. O'Sullivan; Gerald Byrne; Jonathan Magee, Editor(s)

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