Monomer diffusion rates in photopolymer material. Part I. Low spatial frequency holographic gratings
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|Title:||Monomer diffusion rates in photopolymer material. Part I. Low spatial frequency holographic gratings||Authors:||Close, Ciara E.
Gleeson, M. R.
Sheridan, John T.
|Permanent link:||http://hdl.handle.net/10197/3326||Date:||1-Mar-2011||Online since:||2011-11-22T16:34:08Z||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.||Funding Details:||Science Foundation Ireland
Irish Research Council for Science, Engineering and Technology
|Type of material:||Journal Article||Publisher:||Optical Society of America||Journal:||Journal of the Optical Society of America B||Volume:||28||Issue:||4||Start page:||658||End page:||666||Copyright (published version):||2011 Optical Society of America||Subject LCSH:||Photopolymers
|DOI:||10.1364/JOSAB.28.000658||Other versions:||http://dx.doi.org/10.1364/JOSAB.28.000658||Language:||en||Status of Item:||Not peer reviewed|
|Appears in Collections:||Electrical and Electronic Engineering Research Collection|
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