Close, C.E. and Gleeson, M. R. and Sheridan, J. T. (2011) Monomer diffusion rates in photopolymer material. Part I. Low spatial frequency holographic gratings. Journal of the Optical Society of America B, 28 (4). pp. 658-666. ISSN 0740-3224

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Abstract

For photopolymers, knowing the rate of diffusion of the active monomer is important when modeling the material evolution during recording in order to understand and optimize their performance. Unfortunately, a confusingly wide range of values have been reported in the literature. Re-examining these results, experiments are carried out for both coverplated (sealed) and uncoverplated material layers and the measurements are analyzed using appropriate models. In this way, a more detailed analysis of the diffraction processes taking place for large-period gratings is provided. These results, combined with those in Part II, provide unambiguous evidence that the monomer diffusion rate in a commonly used acrylamide polyvinyl alcohol-based material is of the order of 10−10 cm2=s. This value closely agrees with the predictions of the nonlocal polymerization-driven diffusion model.

Item Type:	Article
Keywords:	Monomer diffusion rates; photopolymer material;
Academic Unit:	Faculty of Science and Engineering > Experimental Physics Faculty of Science and Engineering > Chemistry Faculty of Science and Engineering > Computer Science
Item ID:	3590
Depositing User:	Michael Gleeson
Date Deposited:	24 Apr 2012 11:51
Journal or Publication Title:	Journal of the Optical Society of America B
Publisher:	Optical Society of America
Refereed:	Yes
Funders:	Irish Research Council for Science, Engineering and Technology
URI:
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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