Paper
22 April 1996 Holographic characterization of photochromic-doped-polymer films for holographic memories
Roger A. Lessard, Fatima Ghailane, Gurusamy Manivannan
Author Affiliations +
Abstract
The photoinduced reversible color change between thermally stable and meta stable states of spiropyran molecules can modulate the absorption and the refractive index of the photochromic doped poly(vinylcarbazole) films. The effect of the exposure energy and the film thickness on the real-time diffraction efficiency was investigated. The optimal thickness for which the maximum diffraction efficiency is obtained was found to be around 30 micrometers for an exposure energy greater than 1005 mJ/cm2. High efficiency erasable holographic recording at 350 nm was performed. A maximum diffraction efficiency of 13% was achieved for spiropyran doped poly(vinylcarbazole) films.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roger A. Lessard, Fatima Ghailane, and Gurusamy Manivannan "Holographic characterization of photochromic-doped-polymer films for holographic memories", Proc. SPIE 2688, Holographic Materials II, (22 April 1996); https://doi.org/10.1117/12.238547
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Cited by 2 scholarly publications.
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KEYWORDS
Holography

Diffraction

Absorption

Holograms

Diffraction gratings

Data storage

Energy efficiency

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