Orientation-enhanced nonlinear optical properties and phase-conjugate reflective system of a novel Azobenzene doped polymer film
Xie Ru-Sheng(谢茹胜)a)b)† , Fan Wen-Bin(范文彬)a), Lu Ming(陆明)a), and Zhao You-Yuan(赵有源)a)‡
a State Key Laboratory for Advanced Photonic Materials and Devices, Department of Optics Science and Engineering, Fudan University, Shanghai 200433, China; b Fujian College of Bioengineering Technology, Fuzhou 350002, China
Abstract This paper reports that the nonlinear refractive index of a novel organic optical storage film doped azo-diphenylamine polymer is measured by using the $Z$-scan technique. The nonlinear refractive index up to $3.7\times 10 ^{ - 6 }$ cm$^{2}$/W induced by thermo-optical effect is obtained. It indicates that the sample has excellent optical nonlinear properties. The physical mechanism of the great nonlinear optical effect is analysed and the optical conjugate characteristic is also discussed with degenerate four-wave-mixing. The phase conjugate wave diffracted from the formative refractive index grating in the sample is acquired and its equivalent reflectivity reaches about 22%. On this basis, the reflective wave phase-conjugated mirror system was designed, and the image aberration experienced in propagation in the storage experiment is corrected by using the system.
Received: 25 September 2006
Revised: 19 March 2007
Accepted manuscript online:
PACS:
42.65.Hw
(Phase conjugation; photorefractive and Kerr effects)
Fund: Project supported by the
National Natural Science Foundation of China (Grant Nos~19834030 and 50533010).
Cite this article:
Xie Ru-Sheng(谢茹胜), Fan Wen-Bin(范文彬), Lu Ming(陆明), and Zhao You-Yuan(赵有源) Orientation-enhanced nonlinear optical properties and phase-conjugate reflective system of a novel Azobenzene doped polymer film 2007 Chinese Physics 16 2725
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