Characterization of dye-doped PMMA/PVK films as recording materials

Christophe Lafond; Roger A. Lessard; Michel Bolte; Ivan Petkov

doi:10.1117/12.323497

25 September 1998 Characterization of dye-doped PMMA/PVK films as recording materials

Christophe Lafond, Roger A. Lessard, Michel Bolte, Ivan Petkov

Proceedings Volume 3417, Photopolymer Device Physics, Chemistry, and Applications IV; (1998) https://doi.org/10.1117/12.323497
Event: Lasers and Materials in Industry and Opto-Contact Workshop, 1998, Quebec, Canada

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 k_uv of the coloring process, and k_vis of the bleaching process, were determinated. For the two diarylethenes studied, k_uv is much larger in both polymer matrices. However, k_vis 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.

Citation Download Citation

Christophe Lafond, Roger A. Lessard, Michel Bolte, and Ivan Petkov "Characterization of dye-doped PMMA/PVK films as recording materials", Proc. SPIE 3417, Photopolymer Device Physics, Chemistry, and Applications IV, (25 September 1998); https://doi.org/10.1117/12.323497

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