State Key Laboratory of Quantum Optics and Quantum Optics Devices,and College of Physics and Electronics Engineering , Shanxi University, Taiyuan 030006, China
Abstract We present an experimental study on electromagnetically induced absorption (EIA) in the closed transition of a degenerate two-level Cs atomic system.The coupling and probe lasers coupled with the transition 6S1/2 F=4 $\to$ 6P3/2F'=5 of caesium atom. The signal of EIA was obtained and the frequency detuning and intensity effect of the pumping laser were experimentally investigated. The EIA signal in 6S1/2 F =4 $\to$ 6P3/2F'=4 and 6S1/2 F =4 $\to$ 6P3/2F'=3 open transitions was also obtained. As the repumping laser couples with the transition of 6S1/2 F =3 $\to$ 6P3/2F'=4, the EIA signal is increased due to the hyperfine optical pumping.
Received: 26 May 2004
Revised: 10 September 2004
Accepted manuscript online:
(Beam characteristics: profile, intensity, and power; spatial pattern formation)
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10174047, 60378004), and by the Science Foundation for Youth of Shanxi Province, China (Grant Nos 20031004, 20041013).
Cite this article:
Zhao Jian-Ming (赵建明), Zhao Yan-Ting (赵延霆), Huang Tao (黄涛), Xiao Lian-Tuan (肖连团), Jia Suo-Tang (贾锁堂) Observation of EIA in closed and open caesium atomic system 2005 Chinese Physics 14 725
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