Quantitative modeling of the reaction/diffusion kinetics of two-chemistry diffusive photopolymers

A general strategy for characterizing the reaction/diffusion kinetics of photopolymer media is proposed, in which key processes are decoupled and independently measured. This strategy enables prediction of a material's potential refractive index change, solely on the basis of its chemical compo...

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Bibliographic Details
Published inOptical materials express Vol. 4; no. 8; pp. 1668 - 1682
Main Authors Kowalski, Benjamin A., Urness, Adam C., Baylor, Martha-Elizabeth, Cole, Michael C., Wilson, William L., McLeod, Robert R.
Format Journal Article
LanguageEnglish
Published 01.08.2014
Subjects
Diffusion
Mathematical models
Media
Photopolymers
Reaction kinetics
Refractive index
Refractivity
Strategy
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Summary:A general strategy for characterizing the reaction/diffusion kinetics of photopolymer media is proposed, in which key processes are decoupled and independently measured. This strategy enables prediction of a material's potential refractive index change, solely on the basis of its chemical components. The degree to which a material does not reach this potential reveals the fraction of monomer that has participated in unwanted reactions, reducing spatial resolution and lifetime. This approach is demonstrated for a model material similar to commercial media, achieving quantitative predictions of refractive index response over three orders of exposure dose (~1 to ~10 super(3) mJ cm super(-2)) and feature size (0.35 to 500 mu m).
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ISSN:2159-3930
2159-3930
DOI:10.1364/OME.4.001668