中国物理B ›› 2006, Vol. 15 ›› Issue (8): 1798-1805.doi: 10.1088/1009-1963/15/8/028

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High index of refraction via quantum interference in a three-level system of Er3+-doped yttrium aluminium garnet crystal

高锦岳1, 何琼毅2, 王铁军2   

  1. (1)CCAST (World Laboratory) Beijing,100080, China;College of Physics, Jilin University, Changchun 130023, China;Key Laboratory of Coherent Light, Atomic and Molecular Spectroscopy,Educational Ministry of China, Changchun 130023, China; (2)College of Physics, Jilin University, Changchun 130023, China;Key Laboratory of Coherent Light, Atomic and Molecular Spectroscopy,Educational Ministry of China, Changchun 130023, China
  • 收稿日期:2005-11-22 修回日期:2006-04-29 出版日期:2006-08-20 发布日期:2006-08-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10334010).

High index of refraction via quantum interference in a three-level system of Er3+-doped yttrium aluminium garnet crystal

He Qiong-Yi(何琼毅)b) c), Wang Tie-Jun (王铁军)b) c), and Gao Jin-Yue(高锦岳)a)b)c) †   

  1. a CCAST (World Laboratory) Beijing, 100080, Chinab College of Physics, Jilin University, Changchun 130023, Chinac Key Laboratory of Coherent Light, Atomic and Molecular Spectroscopy, Educational Ministry of China, Changchun 130023, China
  • Received:2005-11-22 Revised:2006-04-29 Online:2006-08-20 Published:2006-08-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10334010).

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摘要： A simple three-level system is proposed to produce high index of refraction with zero absorption in an Er3+-doped yttrium aluminium garnet (YAG) crystal, which is achieved for a probe field between the excited state 4I13/2 and ground state 4I15/2 by adjusting a strong coherent driving field between the upper excited state 4I11/2 and 4I15/2. It is found that the changes of the frequency of the coherent driving field and the concentration of Er3+ ions in the YAG crystal can maximize the index of refraction accompanied by vanishing absorption. This result could be useful for the dispersion compensation in fibre communication, laser particle acceleration, high precision magnetometry and so on.

关键词: electromagnetically induced transparency, high index of refraction with zero absorption, Er3+-doped yttrium aluminium garnet crystal

Abstract: A simple three-level system is proposed to produce high index of refraction with zero absorption in an Er3+-doped yttrium aluminium garnet (YAG) crystal, which is achieved for a probe field between the excited state 4I13/2 and ground state 4I15/2 by adjusting a strong coherent driving field between the upper excited state 4I11/2 and 4I15/2. It is found that the changes of the frequency of the coherent driving field and the concentration of Er3+ ions in the YAG crystal can maximize the index of refraction accompanied by vanishing absorption. This result could be useful for the dispersion compensation in fibre communication, laser particle acceleration, high precision magnetometry and so on.

Key words: electromagnetically induced transparency, high index of refraction with zero absorption, Er3+-doped yttrium aluminium garnet crystal

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

  • 42.50.Gy
42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift) 32.80.Qk (Coherent control of atomic interactions with photons) 42.65.-k (Nonlinear optics) 42.25.Gy (Edge and boundary effects; reflection and refraction)