中国物理B ›› 2004, Vol. 13 ›› Issue (1): 36-39.doi: 10.1088/1009-1963/13/1/008

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Dependence of electromagnetically induced transparency on temperature

肖峰, 郭瑞民, 李路明, 杨东海, 陈徐宗   

  1. Key Laboratory of Quantum Information and Measurement, Ministry of Education of China, Department of Electronics, Peking University, Beijing 100871, China
  • 收稿日期:2003-04-09 修回日期:2003-08-29 出版日期:2004-01-22 发布日期:2007-03-22
  • 基金资助:
    Project supported partially by the State Key Development Program of Basic Research of China (Grant No 2001CB309308), and the Key Project of Natural Science Foundation from the Ministry of Education of Chian (Grant No 00-09).

Dependence of electromagnetically induced transparency on temperature

Xiao Feng (肖峰), Guo Rui-Min (郭瑞民), Li Lu-Ming (李路明), Yang Dong-Hai (杨东海), Chen Xu-Zong (陈徐宗)   

  1. Key Laboratory of Quantum Information and Measurement, Ministry of Education of China, Department of Electronics, Peking University, Beijing 100871, China
  • Received:2003-04-09 Revised:2003-08-29 Online:2004-01-22 Published:2007-03-22
  • Supported by:
    Project supported partially by the State Key Development Program of Basic Research of China (Grant No 2001CB309308), and the Key Project of Natural Science Foundation from the Ministry of Education of Chian (Grant No 00-09).

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摘要： We performed an experimental study on the dependence of the linewidth of electromagetically induced transparency (EIT) on the temperature of medium in a Λ-type configuration using caesium vapour. We found that the transparent window is narrowed in the EIT whose two ground levels are composed of two hyperfine levels, and broadened in the case when the two ground levels are degenerated Zeeman sublevels, as the temperature of vapour cell is increased. The explanation for the phenomena is given qualitatively.

关键词: electromagnetically induced transparency, Λ-type configuration, Zeeman sublevel

Abstract: We performed an experimental study on the dependence of the linewidth of electromagetically induced transparency (EIT) on the temperature of medium in a $\Lambda$-type configuration using caesium vapour. We found that the transparent window is narrowed in the EIT whose two ground levels are composed of two hyperfine levels, and broadened in the case when the two ground levels are degenerated Zeeman sublevels, as the temperature of vapour cell is increased. The explanation for the phenomena is given qualitatively.

Key words: electromagnetically induced transparency, $\Lambda$-type configuration, Zeeman sublevel

中图分类号:  (Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency)

  • 42.50.Md
32.60.+i (Zeeman and Stark effects) 32.10.Fn (Fine and hyperfine structure)