半导体学报2006，Vol.27Issue(3)：425-428,4.
ZnO纳米线光学特性测试的倏逝波耦合
An Evanescent Coupling Approach for Optical Characterization of ZnO Nanowires
摘要
Abstract
Using a nanoscale silica fiber taper,light can be efficiently coupled into a single ZnO nanowire by means of evanescent coupling. The method is valid for launching light into a single nanowire in the ultraviolet to infrared range with a coupling efficiency of 25%. Low-loss optical guiding of ZnO nanowires is demonstrated, and the photoluminescence of a single ZnO nanowire is also observed. Compared to conventional approaches in which a lensfocused laser beam is used to excite nanowires at specific wavelengths, this evanescent coupling approach has advantages such as high coupling efficiency and broad-band validity,and it is promising for the optical characterization of semiconductor nanowires or nanoribbons.关键词
ZnO纳米线/倏逝波/光学特性Key words
ZnO nanowire/evanescent coupling/optical characterization分类
信息技术与安全科学引用本文复制引用
杨青,楼静漪,杨德仁,童利民..ZnO纳米线光学特性测试的倏逝波耦合[J].半导体学报,2006,27(3):425-428,4.基金项目
国家自然科学基金资助项目(批准号:60425517,60578061,50272057,60225010)Project supported by the National Natural Science Foundation of China(Nos. 60425517,60578061,50272057, and 60225010) （批准号:60425517,60578061,50272057,60225010）
