Polarization Measurement of Spin-Polarized Electrons by Optical Electron Polarimeter  

作　　者：丁海兵 庞文宁 刘义保 尚仁成 

机构地区：[1]Department of Physics, Tsinghua University, Beijing 100084

出　　处：《Chinese Physics Letters》2005年第10期2546-2548,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10134010.

摘　　要：The polarization of spin-polarized electrons, produced from a new GaAs spin-polarized electron source, is determined by an optical electron polarimeter. The He 3^3p→2^3S1 （388.9nm） transition is used for the optical electron polarimetry. The structure and performance of the experimental setup of spin-polarized electron source and optical electron polarimeter are described. The result of polarization of 30.8% averaged spin-up and spindown polarized electrons is obtained and presented.The polarization of spin-polarized electrons, produced from a new GaAs spin-polarized electron source, is determined by an optical electron polarimeter. The He 3^3p→2^3S1 （388.9nm） transition is used for the optical electron polarimetry. The structure and performance of the experimental setup of spin-polarized electron source and optical electron polarimeter are described. The result of polarization of 30.8% averaged spin-up and spindown polarized electrons is obtained and presented.

关 键 词：PHOTOEMISSION GAAS EXCITATION ENERGY IMPACT 

分 类 号：O43[机械工程—光学工程]