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Proceedings Article

Characterization of dye-doped polymer films as recording materials

[+] Author Affiliations
Christophe Lafond

Univ. Laval and Univ. Blaise Pascal (Canada)

Amir Tork, Roger A. Lessard

Univ. Laval (Canada)

Michel Bolte

Univ. Blaise Pascal (France)

Proc. SPIE 4087, Applications of Photonic Technology 4, 732 (December 15, 2000); doi:10.1117/12.406303
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From Conference Volume 4087

  • Applications of Photonic Technology 4
  • Roger A. Lessard; George A. Lampropoulos
  • Quebec City, Canada | June 12, 2000

abstract

By means of real-time holographic recording, two important classes of photochromic compounds (spiropyrans and fulgides) have been characterized. For spiropyran molecules, important thickness and writing intensity effects were observed. Concerning fulgides molecules, photochemical fatigue resistance in different polymer hosts was investigated. After 10 irradiation cycles, the closed form lost 9, 1 1 , 13 and 35% of its initial absorbance respectively in PS, CA, PMMA and PVK. For the holographic study, diffraction efficiency in fulgide doped PMMA films was strongly dependent on the writing intensity: the rise time 'r takes values 25and 7s for respectively 2 and 8 mW/cm2. Optimum fulgide concentration and writing exposure have been obtained: diffraction efficiency is maximum with a concentration of 2% and an intensity of 4mW/cm2. Keywords:Photochromism, photosensitive materials, fulgides, spiropyrans, polymethylmetacrylate, polyvinylcarbazole, real-time spectrometry, photochemical fatigue resistance, holographic recording.

© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Christophe Lafond ; Amir Tork ; Roger A. Lessard and Michel Bolte
"Characterization of dye-doped polymer films as recording materials", Proc. SPIE 4087, Applications of Photonic Technology 4, 732 (December 15, 2000); doi:10.1117/12.406303; http://dx.doi.org/10.1117/12.406303


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