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Proceedings Paper

Analyzation of photopolymer materials shrunken influence for thick hologram gratings
Author(s): Zhenzhen Li; Xue Xiao; Wei Chen; Guoguo Kang; Yong Huang; Xiaodi Tan
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Paper Abstract

The photopolymer materials are good media to record thick hologram gratings, because photopolymer materials have high resolution, low cost, simple process technology and so on. According to coupled wave theory for thick hologram gratings, we know that the same object beam can be reconstructed if the same reference beam is used to retrieve a thick hologram grating. However, the shrinkage always occurs in the photopolymer materials because of environment temperature, humidity, vibration etc. For instance, the same object beam cannot be reconstructed even the same reference beam to be used. In this paper, we will analysis the shrinkage influence of photopolymer materials for thick hologram gratings. We divide the photopolymer materials into several geometry layers, and analysis the reconstructed characteristics separately basing on coupled wave theory of Kogelnik. Through gradually continuous changing the angle between gratings and the border (we call it slant angle), we can build the geometry model of gratings bending caused by shrinkage of materials. We calculate wave complex amplitude diffracted from every layer, and superpose them to compute the total diffraction efficiency. We simulate above methods to obtain the curve of diffraction efficiency with reconstruction wavelength by using Matlab software. Comparing the simulated results with the experiments results, we can deduce the probable situation of thick hologram gratings bending after photopolymer materials shrink.

Paper Details

Date Published: 27 September 2016
PDF: 7 pages
Proc. SPIE 9949, Polymer Optics and Molded Glass Optics: Design, Fabrication, and Materials 2016, 99490L (27 September 2016); doi: 10.1117/12.2235317
Show Author Affiliations
Zhenzhen Li, Beijing Institute of Technology (China)
Xue Xiao, Beijing Institute of Technology (China)
Wei Chen, Beijing Institute of Technology (China)
Guoguo Kang, Beijing Institute of Technology (China)
Yong Huang, Beijing Institute of Technology (China)
Xiaodi Tan, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 9949:
Polymer Optics and Molded Glass Optics: Design, Fabrication, and Materials 2016
David H. Krevor; William S. Beich; Michael P. Schaub; Alan Symmons, Editor(s)

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