6 April 2017 Effect of monomer diffusion on photoinduced shrinkage in photopolymer layers determined by electronic speckle pattern interferometry
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Abstract
The aim of this study is to determine the effect of monomer diffusion on the photoinduced shrinkage profile in acrylamide based photopolymer layers during holographic recording. Using phase shifting electronic speckle pattern interferometry the displacement at each pixel in the image of the layer is measured. The complete displacement profile of the layer was obtained using phase shifting technique. We observed a reduction in shrinkage as a result of monomer diffusion from unexposed regions of holographic exposure. As a result of diffusion the maximum shrinkage was reduced by 26 % from 7.18μm to 5.28μm in a photopolymer layer of thickness160 ± 3 μm after 84 seconds of recording.
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Mohesh Moothanchery, Mohesh Moothanchery, Manojit Pramanik, Manojit Pramanik, Vincent Toal, Vincent Toal, Izabela Naydenova, Izabela Naydenova, } "Effect of monomer diffusion on photoinduced shrinkage in photopolymer layers determined by electronic speckle pattern interferometry", Proc. SPIE 10127, Practical Holography XXXI: Materials and Applications, 101270W (6 April 2017); doi: 10.1117/12.2251260; https://doi.org/10.1117/12.2251260
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