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Applied Optics

Applied Optics


  • Vol. 41, Iss. 15 — May. 20, 2002
  • pp: 2907–2913

Photobleaching of a solid photochromic medium by a Gaussian laser beam

Serge Caron, Roger A. Lessard, and Pierre C. Roberge  »View Author Affiliations

Applied Optics, Vol. 41, Issue 15, pp. 2907-2913 (2002)

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Equations that describe the photobleaching of photochromic layers illuminated by Gaussian laser beams are given. The photochromic samples are made of thionine, triethanolamine, and polyvinyl alcohol and follow simple kinetics law. Spatial absorbance and time-dependent power transmittance are well described by the developed equations. The model is used to calculate the Gaussian dimension of helium-neon laser beams from kinetics data.

© 2002 Optical Society of America

OCIS Codes
(090.2900) Holography : Optical storage materials
(260.5130) Physical optics : Photochemistry

Original Manuscript: March 27, 2001
Revised Manuscript: October 26, 2001
Published: May 20, 2002

Serge Caron, Roger A. Lessard, and Pierre C. Roberge, "Photobleaching of a solid photochromic medium by a Gaussian laser beam," Appl. Opt. 41, 2907-2913 (2002)

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  1. S. Caron, R. A. Lessard, P. C. Roberge, “Photodarkening and partial photobleaching: application to dichromated gelatine,” Appl. Opt. 40, 707–713 (2001). [CrossRef]
  2. H. S. Loka, P. W. E. Smith, “A novel technique to measure laser beam spot sizes,” Appl. Opt. 38, 7159–7161 (1999). [CrossRef]
  3. L. Tarassov, Physique des Processus dans les Géenérateurs de Rayonnement Optique Cohérent (Mir, Moscow, 1985).
  4. R. J. Collier, C. B. Burckardt, L. H. Ling, Optical Holography (Academic, New York, 1971).
  5. J. M. Fleisher, C. B. Hitz, “Gaussian beam profiling: how and why,” Lasers & Opt. 6, 61–64 (1987).

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