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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 5 — Feb. 1, 2002
  • pp: 845–852

Comparison of holographic photopolymer materials by use of analytic nonlocal diffusion models

Feidhlim T. O’Neill, Justin R. Lawrence, and John T. Sheridan  »View Author Affiliations


Applied Optics, Vol. 41, Issue 5, pp. 845-852 (2002)
http://dx.doi.org/10.1364/AO.41.000845


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Abstract

The one-dimensional diffusion equation governing holographic grating formation in photopolymers, which includes both nonlocal material response and generalized dependence of the rate of polymerization on the illuminating intensity, has been previously solved under the two-harmonic expansion assumption. The resulting analytic expressions for the monomer and polymer concentrations have been derived and their ranges of validity tested in comparison with the more accurate numerical four-harmonic case. We used these analytic expressions to carry out a study of experimental results presented in the literature over a 30-year period. Automatic fitting of the data with these formulas allows material parameters, including the nonlocal chain-length variance σ, to be estimated. In this way, (i) a quantitative comparison of different materials can be made, and (ii) a standard form of experimental result presentation is proposed to facilitate such a procedure.

© 2002 Optical Society of America

OCIS Codes
(090.2900) Holography : Optical storage materials
(090.7330) Holography : Volume gratings
(160.5470) Materials : Polymers

History
Original Manuscript: September 14, 2001
Revised Manuscript: November 14, 2001
Published: February 10, 2002

Citation
Feidhlim T. O’Neill, Justin R. Lawrence, and John T. Sheridan, "Comparison of holographic photopolymer materials by use of analytic nonlocal diffusion models," Appl. Opt. 41, 845-852 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-5-845

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