All-Optical Photorefractive Effect in Carbazole-Based Azo-Side Group Polymer
HUANG Mao-Mao1 , CHEN Zhi-Jian1 , SHI Jun2 , CAO Shao-Kui2 , GONG Qi-Huang1
1 School of Physics, State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871
2 College of Materials Engineering, Zhengzhou University, Zhengzhou 450052
All-Optical Photorefractive Effect in Carbazole-Based Azo-Side Group Polymer
HUANG Mao-Mao1 ;CHEN Zhi-Jian1 ;SHI Jun2 ;CAO Shao-Kui2 ;GONG Qi-Huang1
1 School of Physics, State Key Laboratory for Mesoscopic Physics, Peking University, Beijing 100871
2 College of Materials Engineering, Zhengzhou University, Zhengzhou 450052
关键词 ：
42.70.Ln ,
42.65.Hw ,
42.70.Jk
Abstract ： We observe the photorefractivity without bias voltage or prepoling in a bifunctional photorefractive polymer. The maximum two-beam coupling gain is measured to be 126cm-1 at zero bias voltage. The sample is considered to be poled by the photoinduced longitudinal electric field, which is formed due to the light intensity gradient along the light path. The expression of the electric field was deduced. The energy transfer direction between two writing beams and light intensity dependence of the two-beam coupling gain coefficient is predicted to be consistent with the experimental results. Furthermore, the dependence of the two-beam coupling gain coefficient on external applied electrical field is measured and this experiment verifies the existence of the photoinduced longitudinal electric field.
Key words ：
42.70.Ln
42.65.Hw
42.70.Jk
出版日期: 2006-09-01
:
42.70.Ln
(Holographic recording materials; optical storage media)
42.65.Hw
(Phase conjugation; photorefractive and Kerr effects)
42.70.Jk
(Polymers and organics)
引用本文:
HUANG Mao-Mao;CHEN Zhi-Jian;SHI Jun;CAO Shao-Kui;GONG Qi-Huang. All-Optical Photorefractive Effect in Carbazole-Based Azo-Side Group Polymer[J]. 中国物理快报, 2006, 23(9): 2468-2471.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I9/2468
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