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Proceedings Paper

Stability of holographic gratings recorded on photopolymer films using acrylamide as monomer and N,N'-methylenebisacrylamide
Author(s): Keiichi Osabe; Hiroshi Saito
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Paper Abstract

The stability of holographic gratings recorded on photopolymer films containing acrylamide as a monomer and N,N'- methylenebisacrylamide as a crosslinker was investigated experimentally. The photopolymer films contained acrylamide, N,N'-methylenebisacrylamide, eosin Y, and triethanolamine in polyvinyl alcohol matrices. Four sets of films with different N,N'-methylenebisacrylamide concentrations were fabricated. The concentration of N,N'- methylenebisacrylamide was determined from the relative molar ratio of the crosslinker and the monomer. The relative molar ratio of N,N’-methylenebisacrylamide and acrylamide was set to 0.1, 0.02, 0.004, or 0. The photopolymer films were exposed to two intersecting 532 nm laser beams produced by a YVO laser for 100 s to form a holographic grating with a spatial frequency of 653 lines/mm. Each impinging beam had an intensity of 1.0 mW and a diameter of 2.25 mm. The diffracted intensity was measured during recording using a He-Ne laser at 633 nm and after one, two, and three days of dark storage using a YVO laser. Among the studied photopolymer films, that with a relative molar ratio of 0.1 showed high diffraction efficiency immediately after recording (91%) and the best stability after three days (80%).

Paper Details

Date Published: 10 March 2015
PDF: 7 pages
Proc. SPIE 9386, Practical Holography XXIX: Materials and Applications, 93860Q (10 March 2015); doi: 10.1117/12.2078896
Show Author Affiliations
Keiichi Osabe, Nagaoka College of Technology (Japan)
Hiroshi Saito, TDK-Lambda Corp. (Japan)

Published in SPIE Proceedings Vol. 9386:
Practical Holography XXIX: Materials and Applications
Hans I. Bjelkhagen; V. Michael Bove, Editor(s)

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