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

Composites

Diffraction gratings

Chromophores

Diffraction

Polymers

Fourier transforms

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