| Investigation on the Cs 6S1/2to 7D elec trie quadrupole tr ansition via monochromatic two-photon process at 767 nm |
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| 作者姓名： | San-Dan Wang Jin-Peng Yuan Li-Rong Wang Lian-Tuan Xiao Suo-Tang Jia |
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| 作者单位： | State Key Laboratory of Quantum Optics and Quantum Optics Devices;Collaborative Innovation Center of Extreme Optics |
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| 基金项目： | 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. |
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| 摘 要： | We experimentally demonstrate the cesium electric quadrupole t ransition from the 6S1/2ground st ate to the 7D3/2,5/2excited 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 7D3/2,5/2states 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 7D3/2state,and A=-1.79(0.05)MHz,B=1.05(0.29)MHz for the 7D5/2state,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.
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| 关 键 词： | two-photon process hyperfine structure electrie quadrupole transition |
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