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Comparison of holographic photopolymer materials by use of analytic nonlocal diffusion models
Date Issued
2002-02-01
Date Available
2012-06-14T16:16:04Z
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.
Sponsorship
Not applicable
Type of Material
Journal Article
Publisher
Optical Society of America
Journal
Applied Optics
Volume
41
Issue
5
Start Page
845
End Page
852
Copyright (Published Version)
2002 Optical Society of America
Keywords
Subject – LCSH
Photopolymers
Diffraction gratings
Holographic storage devices (Computer science)
Language
English
Status of Item
Not peer reviewed
ISSN
0003-6935
1539-4522
This item is made available under a Creative Commons License
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Comparison of holographic photopolymer materials using analytic non-local diffusion models.pdf
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60
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