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Temporal analysis of grating formation in photopolymer using the nonlocal polymerization-driven diffusion model
Date Issued
2005-09-05
Date Available
2011-12-02T15:24:59Z
Abstract
The nonlocal polymerization-driven diffusion model (NPDD) has been shown to predict high spatial frequency cut-off in photopolymers
and to accurately predict higher order grating components. We propose an
extension to the NPDD model to account for the temporal response associated with polymer chain growth. An exponential response function is proposed to describe transient effects during the polymerization process. The extended model is then solved using a finite element technique and the nature of grating evolution examined in the case when illumination is stopped prior to the saturation of the grating recording process. Based on independently determined refractive index measurements we determine the temporal evolution of the refractive index modulation and the resulting diffraction efficiency using rigorous coupled wave theory. Material parameters are then extracted based on fits to experimental data for nonlinear and both ideal and non-ideal kinetic models.
Sponsorship
Science Foundation Ireland
Irish Research Council for Science, Engineering and Technology
Type of Material
Journal Article
Publisher
Optical Society of America
Journal
Optics Express
Volume
13
Issue
18
Start Page
6990
End Page
7004
Copyright (Published Version)
2005 Optical Society of America
Subject – LCSH
Holographic storage devices (Computer science)
Photopolymerization
Photopolymers
Diffraction gratings
Web versions
Language
English
Status of Item
Not peer reviewed
ISSN
1094-4087
This item is made available under a Creative Commons License
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Temporal analysis of grating formation in photopolymer using the nonlocal polymer driven diffusion model.pdf
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Scopus© citations
100
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