Orientation-enhanced nonlinear optical properties and phase-conjugate reflective system of a novel Azobenzene doped polymer film  

作　　者：谢茹胜 范文彬 陆明 赵有源 

机构地区：[1]State Key Laboratory for Advanced Pbotonic Materials and Devices, Department of Optics Science and Engineering, Fudan University, Shanghai 200433, China [2]Fujian College of Bioengineering Technology, Fuzhou 350002, China

出　　处：《Chinese Physics B》2007年第9期2725-2730,共6页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China （Grant Nos 19834030 and 50533010）.

摘　　要：This paper reports that the nonlinear refractive index of a novel organic optical storage film doped azodiphenylamine polymer is measured by using the Z-scan technique. The nonlinear refractive index up to 3.7× 10^-6 cm^2/W induced by thermo-optical effect is obtained. It indicates that the sample has excellent optical non- linear 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.This paper reports that the nonlinear refractive index of a novel organic optical storage film doped azodiphenylamine polymer is measured by using the Z-scan technique. The nonlinear refractive index up to 3.7× 10^-6 cm^2/W induced by thermo-optical effect is obtained. It indicates that the sample has excellent optical non- linear 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.

关 键 词：phase conjugated mirror azo-diphenylamine nonlinear refractive index orientation-enhanced Z-SCAN 

分 类 号：O43[机械工程—光学工程]