Electron Energy Spectroscopic Mapping of Surface Plasmon by Parallel Scanning Method  

用并行扫描方法开展的表面等离激元电子能谱成像

作　　者：Zhongfeng Li Tuo Liu Chunkai Xu Xiangjun Chen 李忠锋;刘拓;徐春凯;陈向军(中国科学技术大学近代物理系,合肥微尺度物质科学国家研究中心,合肥230026)

机构地区：[1]Hefei National Research Center for Physical Sciences at the Microscale and Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China

出　　处：《Chinese Journal of Chemical Physics》2022年第3期537-541,I0003,共6页化学物理学报（英文）

基　　金：supported by the National Key Research and Development Program of China(No.2017YFA0303500);the National Natural Science Foundation of China(No.11674302)。

摘　　要：In this work,electron energy spectroscopic mapping of surface plasmon of Ag nanostructures on highly oriented pyrolytic graphite is reported.Benefitting from the angular dispersive feature of the present scanning probe electron energy spectrometer,a multi-channel detection mode is developed.By scanning along one direction,the two-dimensional intensity distribution of Ag surface plasmon excitation due to the collision of electron emitted from the tip can be obtained in parallel.The spectroscopic spatial resolution is determined to be around 80 nm.

关 键 词：Scanning probe electron energy spectroscopy Surface plasmon Spectroscopic mapping 

分 类 号：O53[理学—等离子体物理] TB383.1[理学—物理]