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1 May 2012 Real-time shrinkage studies in photopolymer films using holographic interferometry
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Abstract
Polymerisation induced shrinkage is one of the main reasons why photopolymer materials are not more widely used for holographic applications. The aim of this study is to evaluate the shrinkage in an acrylamide photopolymer layer during holographic recording using holographic interferometry. Shrinkage in photopolymer layers can be measured by real time capture of holographic interferograms during holographic recording. Interferograms were captured using a CMOS camera at regular intervals. The optical path length change and hence the shrinkage were determined from the captured fringe patterns. It was observed that the photopolymer layer shrinkage is in the order of 3.5%.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Moothanchery, I. Naydenova, V. Bavigadda, S. Martin, and V. Toal "Real-time shrinkage studies in photopolymer films using holographic interferometry", Proc. SPIE 8437, Real-Time Image and Video Processing 2012, 84370I (1 May 2012); https://doi.org/10.1117/12.922413
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