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Chinese Physics, 2004, Vol. 13(10): 1669-1673    DOI: 10.1088/1009-1963/13/10/016
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Absorption spectroscopy of cold caesium atoms confined in a magneto-optical trap

Yan Shu-Bin (闫树斌), Liu Tao (刘涛), Geng Tao (耿涛), Zhang Tian-Cai (张天才), Peng Kun-Chi (彭堃墀), Wang Jun-Min (王军民)
State Key Laboratory of Quantum Optics and Quantum Optics Devices, and Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
Abstract  Absorption spectra of cold caesium atoms confined in a magneto-optical trap are measured around $D_2$ line at 852nm with a weak probe beam. Absorption reduction dip due to electromagnetically induced transparency (EIT) effect induced by the cooling/trapping field in a V-type three-level system and a gain peak near the cycling transition are clearly observed. Several mechanisms mixed with EIT effect in a normal V-type three-level system are briefly discussed. A simple theoretical analysis based on a dressed-state model is presented for interpretation of the absorption spectra.
Keywords:  absorption spectroscopy      caesium atoms      magneto-optical trap (MOT)      V-type three-level system      electromagnetically induced transparency (EIT)  
Received:  04 March 2004      Revised:  02 April 2004      Accepted manuscript online: 
PACS:  32.60.+i (Zeeman and Stark effects)  
  33.55.Fi  
  39.25.+k  
  32.80.Pj  
  42.50.-p (Quantum optics)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 60178006), by the Natural Science Foundation of Shanxi Province (Grant No 20021030).

Cite this article: 

Yan Shu-Bin (闫树斌), Liu Tao (刘涛), Geng Tao (耿涛), Zhang Tian-Cai (张天才), Peng Kun-Chi (彭堃墀), Wang Jun-Min (王军民) Absorption spectroscopy of cold caesium atoms confined in a magneto-optical trap 2004 Chinese Physics 13 1669

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