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Nonlocal-response diffusion model of holographic recording in photopolymer
Author(s)
Date Issued
2000-06-01
Date Available
2011-10-20T13:22:15Z
Abstract
The standard one-dimensional diffusion equation is extended to include nonlocal temporal and spatial medium responses. How such nonlocal effects arise in a photopolymer is discussed. It is argued that assuming rapid polymer chain growth, any nonlocal temporal response can be dealt with so that the response can be completely understood in terms of a steady-state nonlocal spatial response. The resulting nonlocal diffusion equation is then solved numerically, in low-harmonic approximation, to describe grating formation. The effects of the diffusion rate, the rate of polymerization, and a new parameter, the nonlocal response length, are examined by using the predictions of the model. By applying the two-wave coupled-wave model, assuming a linear relationship between polymerized concentration and index modulation, the resulting variation of the grating diffraction efficiency is examined.
Sponsorship
Other funder
Other Sponsorship
Dublin Institute of Technology’s Strategic Research and Development program
Type of Material
Journal Article
Publisher
Optical Society of America
Journal
Journal of the Optical Society of America A
Volume
17
Issue
6
Start Page
1108
End Page
1114
Copyright (Published Version)
2000 Optical Society of America
Subject – LCSH
Heat equation
Photopolymers
Holographic interferometry
Web versions
Language
English
Status of Item
Peer reviewed
ISSN
0740-3232
This item is made available under a Creative Commons License
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Non-local response diffusion model of holographic recording in photopolymer.pdf
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161.55 KB
Format
Owning collection
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250
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