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Absorption spectroscopy of cold caesium atoms confined in a magneto-optical trap |
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| Authors: | Yan Shu-Bin Liu Tao Geng Tao Zhang Tian-Cai Peng Kun-Chi Wang Jun-Min |
| Affiliation: | 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) |
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