Multigrating in photorefractive composites containing nonlinear chromophore azo-dye 1-n-butoxyl-2,5-dimethyl-4-(4'-nitrophenylazo)benzene

Feng Wang; Zhijian Chen; Qihuang Gong; Yiwang Chen; Huiying Chen

doi:10.1117/12.318124

17 August 1998 Multigrating in photorefractive composites containing nonlinear chromophore azo-dye 1-n-butoxyl-2,5-dimethyl-4-(4'- nitrophenylazo)benzene

Feng Wang, Zhijian Chen, Qihuang Gong, Yiwang Chen, Huiying Chen

Author Affiliations +

Proceedings Volume 3554, Photorefractive Materials: Phenomena and Related Applications II; (1998) https://doi.org/10.1117/12.318124
Event: Photonics China '98, 1998, Beijing, China

Abstract

Distinct electroabsorption grating and photoisomerization grating as well as photorefractive grating were observed in the composite consisting of 1-n-butoxyl-2,5- dimethyl-4-(4'- nitrophenylazo)benzene: poly(N-vinylcarbazole):2,4,7- trinitro-9-fluorenone in a weight ratio of 44:55:1. Based on the quick translation technique of two-beam coupling experimental geometry, we measured the electroabsorption gratin to be 6-7 cm^-1, and photoisomeric effect also brought an absorption grating of 2-3 cm^-1. Photoisomeric effect caused index grating was separated from the others by analyzing the dynamic behavior of the gratings, and an amplitude between 1 X 10^-4-2 X 10^-4 was obtained.

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Feng Wang, Zhijian Chen, Qihuang Gong, Yiwang Chen, and Huiying Chen "Multigrating in photorefractive composites containing nonlinear chromophore azo-dye 1-n-butoxyl-2,5-dimethyl-4-(4'- nitrophenylazo)benzene", Proc. SPIE 3554, Photorefractive Materials: Phenomena and Related Applications II, (17 August 1998); https://doi.org/10.1117/12.318124

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