ZnO纳米线的三阶非线性光学性质  

Third-Order Nonlinear Optical Properties of ZnO Nanowires

作　　者：李春萍[1] 宫丽晶[1] 周志明[1] 张健[1] LI Chunping;GONG Lijing;ZHOU Zhiming;ZHANG Jian(Fundamental Department of Basic Aviation College,Air Force Aviation University,Changchun 130022,China)

机构地区：[1]空军航空大学航空基础学院基础部,长春130022

出　　处：《吉林大学学报（理学版）》2020年第5期1254-1258,共5页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:51272285);吉林省高等教育科研项目(批准号:JGJX2020D199);吉林省国际科技合作项目(批准号:20190701029GH).

摘　　要：用微乳液法制备ZnO纳米线,对材料的形貌和结构进行透射电镜表征和Raman光谱表征,并设计超短脉冲Z扫描实验,研究ZnO纳米线的三阶非线性光学特性.结果表明:制备的材料尺寸均一、结晶良好,具有较好的紫外区激子发光特性;ZnO纳米线三阶非线性光学折射率为正值,其三阶非线性光学极化率比体相ZnO高约3个数量级.因此制备的ZnO纳米线材料具有较好的光学和非线性光学性质.ZnO nanowires were prepared by microemulsion synthesis method.The morphology and structure of ZnO nanowires were characterized by transmission electron microscopy(TEM)and Raman spectrum,and the third-order nonlinear optical properties of ZnO nanowires were studied by ultra-short pulse Z-scan experiment.The results show that the prepared materials have the same size,good crystallinity and good excitonic photoluminescence characteristics in ultraviolet region.The third-order nonlinear optical refractive index of ZnO nanowires is positive,and the third-order nonlinear optical susceptibility is almost three orders larger than that of bulk ZnO materials.Therefore,the ZnO nanowires have good optical and nonlinear optical properties.

关 键 词：ZNO纳米材料 三阶非线性光学性质 Z扫描技术 

分 类 号：O437[机械工程—光学工程]