Investigation on the Cs 6S_(1/2)to 7D elec trie quadrupole tr ansition via monochromatic two-photon process at 767 nm  

作　　者：San-Dan Wang Jin-Peng Yuan Li-Rong Wang Lian-Tuan Xiao Suo-Tang Jia 

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China [2]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China

出　　处：《Frontiers of physics》2021年第1期151-156,共6页物理学前沿（英文版）

基　　金：supported by the National Key R&D Program of China under Grant No.2017YFA0304203;the NSFC under Grants Nos.61875112,61705122,91736209;the Program for Sanjin Scholars of Shanxi Province;the Key Research and Development Program of Shanxi Province for International Cooperation under Grant Nos.201803D421034,1331KSC.

摘　　要：We experimentally demonstrate the cesium electric quadrupole t ransition from the 6S_(1/2)ground st ate to the 7D_(3/2,5/2)excited state t hrough a virtu al level by using a single laser at 767 nm.The excited state energy level population is characterized by varying the laser power,the temperature of the vapor,and the polarization combinations of the laser beams.The optimized experimentai parameters are obtained for a high resolution transition interval identification.The magnetic dipole coupling constant A and elec trie quadrupole coupling constant B for the 7D_(3/2,5/2)states are precisely determined by using the hyperfine levels intervals.The results,A=7.39(0.06)MHz,B=-0.19(0.18)MHz for the 7D_(3/2)state,and A=-1.79(0.05)MHz,B=1.05(0.29)MHz for the 7D_(5/2)state,are in good agreement with the previous reported results.This work is beneficial for the determination of atomic structure information and parity non-conser vat ion,which paves the way for the field of precision measurements and atomic physics.

关 键 词：two-photon process hyperfine structure electrie quadrupole transition 

分 类 号：O43[机械工程—光学工程]