화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.5, No.1, 65-68, March, 1999
Laser-induced Polyacrylamide/PVA Film with Large Diffraction Index
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Polyacrylamide film was fabricated using polyvinylalcohol as a binder with He-Ne laser(633 nm). The methylene blue/triethanolamine system was used. The formation kinetics was proved by Ar-ion laser (488 nm). Diffraction efficiency for different amounts of acrylamide was measured and an optimizing amount of monomer (6%) was determined. The photobleaching rate constant by Beer-Lambert equation was also determined. Photochemical bleaching and diffraction properties of photo-polymer was explained. The holographic grating with 1000 lines/mm and maximum diffraction efficiency (80%) were obtained.
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