Analytical solutions for a doubly driven two-level atom

被引:0
作者
Liu, Jin-Yun [1 ]
Jia, Feng-Dong [1 ]
Li, Xiao-Kang [1 ]
Lv, Shuang-Fei [1 ]
Xu, Xiang-Yuan [2 ,3 ,4 ]
Xue, Ping [2 ,3 ]
Zhong, Zhi-Ping [1 ]
机构
[1] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
[2] Tsinghua Univ, Dept Phys, State Key Lab Low Dimens Quantum Phys, Beijing 100084, Peoples R China
[3] Collaborat Innovat Ctr Quantum Matter, Beijing 100084, Peoples R China
[4] Capital Normal Univ, Dept Phys, Beijing 100037, Peoples R China
基金
中国国家自然科学基金; 北京市自然科学基金;
关键词
the doubly driven/dressed atom; near-resonant bichromatic laser field; energy level; BICHROMATIC FIELD; FLUORESCENCE; ABSORPTION; RESONANCE;
D O I
10.1088/1674-1056/26/7/074203
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have deduced analytical solutions of an energy level diagram of the doubly driven/dressed atom for a two-level atom exposed to a strong near-resonant bichromatic laser field in a special case, i.e., the bichromatic field with frequencies omega(1) and omega(2), and Rabi frequencies Omega(1) and Omega(2), in which the first coupling field of Omega(1) acts on the bare atomic levels, and then the resulting singly dressed states are driven by the second coupling field of Omega(2), thus resulting in the doubly dressed atom. We have measured the probe absorption spectra of a doubly driven two-level atom. The system consists of 5(2)S(1/2), F = 2 and 5(2)P(3/2), F' = 3 states of Rb-87 atoms in a magneto-optical trap (MOT) as well as the cooling/trapping beams and an additional coupling field. As for the spectroscopic properties of the doubly driven two-level atom, theoretical analytical solutions are in general agreement with the experimental spectrum as a whole.
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页数:5
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