中国物理B ›› 2013, Vol. 22 ›› Issue (3): 30309-030309.doi: 10.1088/1674-1056/22/3/030309

• GENERAL • 上一篇    下一篇

Electromagnetically induced transparency of single Λ-type three-level atom in high-finesse optical cavity

孙燕芬a, 谭磊b, 徐岩c   

  1. a Department of Physics, Luliang University, Luliang 033000, China;
    b Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China;
    c College of Science, Shandong University of Science and Technology, Qingdao 266510, China
  • 收稿日期:2012-07-06 修回日期:2012-09-06 出版日期:2013-02-01 发布日期:2013-02-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11274148 and 10704031), the Basic Scientific Research Business Expenses of the Central University, China (Grant No. lzujbky-2010-75), and the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, China.

Electromagnetically induced transparency of single Λ-type three-level atom in high-finesse optical cavity

Sun Yan-Fen (孙燕芬)a, Tan Lei (谭磊)b, Xu Yan (徐岩)c   

  1. a Department of Physics, Luliang University, Luliang 033000, China;
    b Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, China;
    c College of Science, Shandong University of Science and Technology, Qingdao 266510, China
  • Received:2012-07-06 Revised:2012-09-06 Online:2013-02-01 Published:2013-02-01
  • Contact: Tan Lei E-mail:tanlei@lzu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11274148 and 10704031), the Basic Scientific Research Business Expenses of the Central University, China (Grant No. lzujbky-2010-75), and the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, China.

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摘要： We study the features of the electromagnetically induced transparency (EIT) in a single Λ-type three-level atom placed in a high finesse cavity under the action of a coupling laser and a probe laser. Our calculations show that three transparency windows appear when the pump strength is big enough. It can be explained by the residual pump in the cavity resulting mostly in the energy splitting. Level |3〉is split into four slightly different energy levels. An interference takes place between excitation pathways. Furthermore, it is also shown that the frequencies of the EIT windows can be tuned by changing the coupling field detuning Δ2 and the reflection profile is very sensitive to the cavity field detuning Δc.

关键词: Λ-type three-level atom, high finesse optical cavity, electromagnetically induced transparency

Abstract: We study the features of the electromagnetically induced transparency (EIT) in a single Λ-type three-level atom placed in a high finesse cavity under the action of a coupling laser and a probe laser. Our calculations show that three transparency windows appear when the pump strength is big enough. It can be explained by the residual pump in the cavity resulting mostly in the energy splitting. Level |3〉is split into four slightly different energy levels. An interference takes place between excitation pathways. Furthermore, it is also shown that the frequencies of the EIT windows can be tuned by changing the coupling field detuning Δ2 and the reflection profile is very sensitive to the cavity field detuning Δc.

Key words: Λ-type three-level atom, high finesse optical cavity, electromagnetically induced transparency

中图分类号:  (Decoherence; open systems; quantum statistical methods)

  • 03.65.Yz
03.65.Ud (Entanglement and quantum nonlocality) 03.67.Pp (Quantum error correction and other methods for protection against decoherence)