中国物理B ›› 2004, Vol. 13 ›› Issue (3): 348-352.doi: 10.1088/1009-1963/13/3/015

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

The asymmetry of the Autler－Townes doublet in a three-level system

张连水, 冯晓敏, 李晓苇, 韩理, 傅广生   

  1. College of Physics Science and Technology, Hebei University, Baoding 071002, China
  • 收稿日期:2003-04-24 修回日期:2003-06-25 出版日期:2005-07-06 发布日期:2005-07-06

The asymmetry of the Autler－Townes doublet in a three-level system

Zhang Lian-Shui (张连水), Feng Xiao-Min (冯晓敏), Li Xiao-Wei (李晓苇), Han Li (韩理), Fu Guang-Sheng (傅广生)   

  1. College of Physics Science and Technology, Hebei University, Baoding 071002, China
  • Received:2003-04-24 Revised:2003-06-25 Online:2005-07-06 Published:2005-07-06

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摘要： The effect of the Bloch－Siegert shift on a strongly driven transition is studied in a three-level double-resonance configuration and the result is presented in this paper. We show that when a resonantly driven transition is probed to a third level, the Bloch－Siegert shift leads to an asymmetric Autler－Townes doublet. An important conclusion is that the asymmetry depends only on the driving field intensity, in contrast to a previous study where it is reported that the asymmetry depends not only on the driving field intensity but also on the characteristics of the three-level system. Our result implies an alternative way of measuring the Bloch－Siegert shift.

Abstract: The effect of the Bloch－Siegert shift on a strongly driven transition is studied in a three-level double-resonance configuration and the result is presented in this paper. We show that when a resonantly driven transition is probed to a third level, the Bloch－Siegert shift leads to an asymmetric Autler－Townes doublet. An important conclusion is that the asymmetry depends only on the driving field intensity, in contrast to a previous study where it is reported that the asymmetry depends not only on the driving field intensity but also on the characteristics of the three-level system. Our result implies an alternative way of measuring the Bloch－Siegert shift.

Key words: Autler－Townes doublet, Bloch－Siegert shift, three-level system

中图分类号:  (Zeeman and Stark effects)

  • 32.60.+i
32.70.Jz (Line shapes, widths, and shifts) 32.70.Fw (Absolute and relative intensities)