中国物理B ›› 2008, Vol. 17 ›› Issue (6): 2147-2151.doi: 10.1088/1674-1056/17/6/034

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Spectral feature with sub-natural linewidth due to quantum interference in a four-level system

杨丽君, 张连水, 庄仲红, 郭庆林, 傅广生   

  1. College of Physical Science and Technology, Hebei University, Baoding 071002, China
  • 收稿日期:2007-09-19 修回日期:2008-02-13 出版日期:2008-06-20 发布日期:2008-06-20
  • 基金资助:
    Project supported by the Natural Science Foundation from Hebei Province, China (Grant No A2005000091).

Spectral feature with sub-natural linewidth due to quantum interference in a four-level system

Yang Li-Jun(杨丽君)†, Zhang Lian-Shui(张连水), Zhuang Zhong-Hong(庄仲红), Guo Qing-Lin(郭庆林), and Fu Guang-Sheng(傅广生)   

  1. College of Physical Science and Technology, Hebei University, Baoding 071002, China
  • Received:2007-09-19 Revised:2008-02-13 Online:2008-06-20 Published:2008-06-20
  • Supported by:
    Project supported by the Natural Science Foundation from Hebei Province, China (Grant No A2005000091).

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摘要： This paper studies the narrow spectral feature appearing in a four-level system coupled by two strong coherent fields and probed by a weak laser field. The linewidth is examined as a function of the Rabi frequencies of coupling fields, and the result is explained by using the dressed-state formalism.

Abstract: This paper studies the narrow spectral feature appearing in a four-level system coupled by two strong coherent fields and probed by a weak laser field. The linewidth is examined as a function of the Rabi frequencies of coupling fields, and the result is explained by using the dressed-state formalism.

Key words: quantum interference, linewidth, dressed-state

中图分类号:  (Quantum optics)

  • 42.50.-p
32.70.Jz (Line shapes, widths, and shifts)