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Journal of Optical Technology

Journal of Optical Technology

| SIMULTANEOUS RUSSIAN-ENGLISH PUBLICATION

  • Vol. 73, Iss. 7 — Jul. 1, 2006
  • pp: 484–487

Recording mechanism of photochemical holograms in a thiazine-dye-polyvinyl-alcohol medium under the action of a helium-neon laser

Yu. D. Lantukh, G. A. Ketsle, S. N. Pashkevich, S. N. Letuta, and D. A. Razdobreev  »View Author Affiliations


Journal of Optical Technology, Vol. 73, Issue 7, pp. 484-487 (2006)
http://dx.doi.org/10.1364/JOT.73.000484


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Abstract

This paper discusses the mechanism of amplitude holographic recording in polyvinyl alcohol films with additives of thiazine dyes (thionine, methylene blue) under the action of a helium-neon laser. It is proposed to describe the photochemical transformations of the dye by a sequential reaction scheme with one reversible stage. It is shown that the presence of associates (dimers) of the dyes in the films has a substantial effect on the bleaching kinetics. Plasticization of the polymer makes it possible to control the ratio of the rate constants of the reaction scheme and also results in complete breakdown of the holographic gratings after the recording is completed. The kinetics of spontaneous erasure of the holograms in the test medium are compared with those of the thiazine-dye-deoxyribonucleic-acid (DNA) film system.

Citation
Yu. D. Lantukh, G. A. Ketsle, S. N. Pashkevich, S. N. Letuta, and D. A. Razdobreev, "Recording mechanism of photochemical holograms in a thiazine-dye-polyvinyl-alcohol medium under the action of a helium-neon laser," J. Opt. Technol. 73, 484-487 (2006)
http://www.opticsinfobase.org/jot/abstract.cfm?URI=jot-73-7-484


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