文献类型：期刊文献

中文题名：共振激发微束光致发光单量子点谱仪

英文题名：Single Quantum Dot Spectroscopy by Means μ-PL Resonant Excitation

作者：刘昶时[1]

机构：[1]绍兴文理学院物理系光电材料研究所

年份：2004

卷号：0

期号：2

起止页码：405

中文期刊名：光谱实验室

外文期刊名：Chinese Journal of Spectroscopy Laboratory

收录：CSCD2011_2012、CSCD

语种：中文

中文关键词：微束光致发光;量子点;高空间分辨率

外文关键词：Microphotoluminescence,Quantum Dots,High Spatial Resolution

中文摘要：光谱优化、高度聚焦束径窄于 2微米激光束的共振激发具有可辨别精细结构的单量子点 ,与象素在16 0万以上电荷耦合 (CCD)灵敏探测技术相结合能研制出微束光致发光 (μ- PL )系统。应用此技术成功地揭示高量子点密度 In As/ Ga As的低维特征。

外文摘要：A sensitive microphotoluminescence system(μ PL) with high spatial resolution using a microscope was built up,and optimized with respect to light gathering, spectral and spatial resolution. Spectrum was captured by a sensitive CCD spectrograph and the spatial resolution exceeds 2μm. Further more,spectroscopy at single dot level is attained with discernible fine structure based on the grown InAs/GaAs with high density quantum dots,the high spatial resolution with expected low dimensional characteristics and resonant excitation technique.