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Proceedings Paper

Characterization of dye-doped PMMA/PVK films as recording materials
Author(s): Christophe Lafond; Roger A. Lessard; Michel Bolte; Ivan Petkov
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Paper Abstract

The photoinduced reversible color change in photochromic doped PMMA and PVK films was investigated. Upon UV and visible irradiation, closed form absorbency, in the beginning of the photoreactions, followed first-order kinetic and, then deviated from this order. The rate- constants kuv of the coloring process, and kvis of the bleaching process, were determinated. For the two diarylethenes studied, kuv is much larger in both polymer matrices. However, kvis is stronger in PVK for fulgide Aberchrome 670. Both rates are identical in PMMA. Photochemical fatigue resistance was studied. For fulgide Aberchrome 670 in PMMA matrix, we found 13 percent disappearance after 10 repeated UV and visible cycles.

Paper Details

Date Published: 25 September 1998
PDF: 12 pages
Proc. SPIE 3417, Photopolymer Device Physics, Chemistry, and Applications IV, (25 September 1998); doi: 10.1117/12.323497
Show Author Affiliations
Christophe Lafond, COPL/Univ. Laval and Univ. Blaise Pascal (Canada)
Roger A. Lessard, COPL/Univ. Laval (Canada)
Michel Bolte, Univ. Blaise Pascal (France)
Ivan Petkov, Univ. of Sofia (Russia)

Published in SPIE Proceedings Vol. 3417:
Photopolymer Device Physics, Chemistry, and Applications IV
Roger A. Lessard, Editor(s)

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