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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 14 — May. 10, 1998
  • pp: 3038–3043

Simplified method for preparing methylene-blue-sensitized dichromated gelatin

Kazumasa Kurokawa, Satoshi Koike, Sinji Namba, Toru Mizuno, and Toshihiro Kubota  »View Author Affiliations


Applied Optics, Vol. 37, Issue 14, pp. 3038-3043 (1998)
http://dx.doi.org/10.1364/AO.37.003038


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Abstract

Methylene-blue-sensitized dichromated gelatin (MBDCG) is a suitable material for recording full-color holograms in a single layer. However, a drying process in an ammonia atmosphere is necessary to prepare the MBDCG plate. This process is time-consuming and unstable. A simplified method for preparing the MBDCG plate is presented in which the MBDCG can be dried without ammonia. Elimination of the drying process is possible when the methylene blue in MBDCG does not separate. This is achieved by a decrease in the concentration of dichromate in the photosensitized solution and the addition of an ammonia solution to the photosensitized solution. Last, the gelatin is allowed to gel. A Lippmann color hologram grating with a diffraction efficiency of more than 80% is obtained by use of this MBDCG.

© 1998 Optical Society of America

OCIS Codes
(090.0090) Holography : Holography
(090.2900) Holography : Optical storage materials

History
Original Manuscript: September 4, 1997
Revised Manuscript: January 20, 1998
Published: May 10, 1998

Citation
Kazumasa Kurokawa, Satoshi Koike, Sinji Namba, Toru Mizuno, and Toshihiro Kubota, "Simplified method for preparing methylene-blue-sensitized dichromated gelatin," Appl. Opt. 37, 3038-3043 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-14-3038

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