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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 14 — May. 10, 2009
  • pp: 2642–2648

Holographic recording in acrylamide photopolymers: thickness limitations

Mohammad Sultan Mahmud, Izabela Naydenova, Nitesh Pandey, Tzwetanka Babeva, Raghavendra Jallapuram, Suzanne Martin, and Vincent Toal  »View Author Affiliations


Applied Optics, Vol. 48, Issue 14, pp. 2642-2648 (2009)
http://dx.doi.org/10.1364/AO.48.002642


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Abstract

Holographic recording in thick photopolymer layers is important for application in holographic data storage, volume holographic filters, and correlators. Here, we studied the characteristics of acrylamide-based photopolymer layers ranging in thickness from 250 μm to 1 mm . For each thickness, samples with three different values of absorbance were studied. By measuring the diffraction efficiency growth of holographically recorded gratings and studying the diffraction patterns obtained, the influence of scattering on the diffraction efficiency of thick volume holographic gratings was analyzed. It was found that, above a particular thickness and absorbance, the diffraction efficiency significantly decreased because of increased holographic scattering. From the diffraction efficiency dependence on absorbance and thickness it is possible to choose photopolymer layer properties that are suitable for a particular holographic application. This study was carried out to determine the highest layer thickness that could be used for phase code multiplexed holographic data storage utilizing thick photopolymer layers as a recording medium. Based on our studies to date we believe that the layer to be used for phase coded reference beam recording with 0.1 absorbance at 532 nm can have a thickness up to 450 μm . The potential use of thicker layers characterized by low scattering losses is part of our continuing research.

© 2009 Optical Society of America

OCIS Codes
(050.0050) Diffraction and gratings : Diffraction and gratings
(090.2900) Holography : Optical storage materials

ToC Category:
Holography

History
Original Manuscript: January 2, 2009
Revised Manuscript: April 8, 2009
Manuscript Accepted: April 16, 2009
Published: May 4, 2009

Citation
Mohammad Sultan Mahmud, Izabela Naydenova, Nitesh Pandey, Tzwetanka Babeva, Raghavendra Jallapuram, Suzanne Martin, and Vincent Toal, "Holographic recording in acrylamide photopolymers: thickness limitations," Appl. Opt. 48, 2642-2648 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-14-2642

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