中国物理B ›› 1997, Vol. 6 ›› Issue (1): 13-17.doi: 10.1088/1004-423X/6/1/003

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ELECTROMAGNETICALLY INDUCED FOCUSING IN A Λ-TYPE MEDIUM

徐至展1, 龚尚庆2   

  1. (1)Institute of Physics, Academia Sinica, Beijing 100080, China; (2)Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, Shanghai 201800, China
  • 收稿日期:1995-10-17 出版日期:1997-01-20 发布日期:1997-01-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

ELECTROMAGNETICALLY INDUCED FOCUSING IN A $\Lambda$-TYPE MEDIUM

GONG SHANG-QING (龚尚庆)a, XU ZHI-ZHAN (徐至展)a, PAN SHAO-HUAb   

  1.  a Shanghai Institute of Optics and Fine Mechanics, Academia Sinica, Shanghai 201800, China; b Institute of Physics, Academia Sinica, Beijing 100080, China
  • Received:1995-10-17 Online:1997-01-20 Published:1997-01-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

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摘要： Electromagnetlcally induced transparency (EIT) in an inhomogenously broadened medium consisting of Λ-type three-level atoms has been analyzed. It is shown that the A system can induce a transparency of the medhun when the probe laser and the coupling laser have the same frequency detunings (including zero). Across the EIT window, the radial variation of the strong coupling laser radiation may lead to electromagnetically induced focusing or defocusing of the weak probe laser at separate probe frequency detuning points.

Abstract: Electromagnetlcally induced transparency (EIT) in an inhomogenously broadened medium consisting of $\Lambda$-type three-level atoms has been analyzed. It is shown that the A system can induce a transparency of the medhun when the probe laser and the coupling laser have the same frequency detunings (including zero). Across the EIT window, the radial variation of the strong coupling laser radiation may lead to electromagnetically induced focusing or defocusing of the weak probe laser at separate probe frequency detuning points.

中图分类号:  (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)

  • 42.50.Gy
37.10.Vz (Mechanical effects of light on atoms, molecules, and ions) 37.10.Vz (Mechanical effects of light on atoms, molecules, and ions)