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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 3 — Mar. 1, 2009
  • pp: 528–536

Analysis of the photoabsorptive behavior of two different photosensitizers in a photopolymer material

Shui Liu, Michael R. Gleeson, and John T. Sheridan  »View Author Affiliations


JOSA B, Vol. 26, Issue 3, pp. 528-536 (2009)
http://dx.doi.org/10.1364/JOSAB.26.000528


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Abstract

Photopolymer materials are practical materials for use as holographic recording media. To further develop such materials, a deeper understanding of the photochemical mechanisms present during the formation of holographic gratings in these materials has become ever more crucial. This is especially true of the photoinitiation process, which has already received much attention in the literature. Typically the absorption mechanism varies with exposure time. This has been previously investigated in association with several effects taking place during recording. Since holographic data storage requires multiple sequential short exposures, it is necessary to verify the temporal change in photosensitizer concentration. Postexposure effects have also been discussed in the literature, however, such studies do not include effects such as photosensitizer recovery and bleaching. We report on experimental results and theoretical analysis of the recovery and bleaching mechanisms, which arise during exposure and postexposure for two different types of photosensitizers, methylene blue and erythrosine B in a polyvinylalcohol–acrylamide based photopolymer material.

© 2009 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.2890) Holography : Holographic optical elements
(090.2900) Holography : Optical storage materials
(160.5470) Materials : Polymers
(160.5335) Materials : Photosensitive materials

ToC Category:
Holography

History
Original Manuscript: August 18, 2008
Revised Manuscript: December 22, 2008
Manuscript Accepted: January 8, 2009
Published: February 25, 2009

Citation
Shui Liu, Michael R. Gleeson, and John T. Sheridan, "Analysis of the photoabsorptive behavior of two different photosensitizers in a photopolymer material," J. Opt. Soc. Am. B 26, 528-536 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-3-528

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