Response Time Characteristics and Holographic Gratings in an Azo-Dye Doped Photorefractive Polymeric Composite
WANG Feng, CHEN Zhi-jian, GONG Qi-huang, CHEN Yi-wang1 , CHEN Hui-ying1
Department of Physics, Mesoscopic Physics Laboratory, Peking University, Beijing 100871
1 Department of Chemistry, Peking University, Beijing 100871
Response Time Characteristics and Holographic Gratings in an Azo-Dye Doped Photorefractive Polymeric Composite
WANG Feng;CHEN Zhi-jian;GONG Qi-huang;CHEN Yi-wang1 ;CHEN Hui-ying1
Department of Physics, Mesoscopic Physics Laboratory, Peking University, Beijing 100871
1 Department of Chemistry, Peking University, Beijing 100871
关键词 ：
42.65.Hw ,
78.66.Qn
Abstract ： Theoretical and experimental investigation on the applied electric field- and intensity-dependent photorefractive response in a photorefractive polymeric composite is presented. The decay time constant and the corresponding grating-amplitude for the composite consisting of 1-n-butoxy1-2,5-dimethy1-4-(4 ’- nitrophenylazo) benzene : poly(N-vinylcarbazole) : 2,4,7-trinitro-9-fluorenone with a weight ratio 44:55:1 were measured. The results revealed that there existed two gratings simultaneously, one was caused by the photorefractive effect, and the other was contributed from the photo-isomerization process. The dynamic process for the photorefractive grating was explained with a modified band transport model.
Key words ：
42.65.Hw
78.66.Qn
出版日期: 1998-05-01
:
42.65.Hw
(Phase conjugation; photorefractive and Kerr effects)
78.66.Qn
(Polymers; organic compounds)
引用本文:
WANG Feng;CHEN Zhi-jian;GONG Qi-huang;CHEN Yi-wang;CHEN Hui-ying. Response Time Characteristics and Holographic Gratings in an Azo-Dye Doped Photorefractive Polymeric Composite[J]. 中国物理快报, 1998, 15(5): 351-353.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1998/V15/I5/351
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