中国物理B ›› 2017, Vol. 26 ›› Issue (5): 54207-054207.doi: 10.1088/1674-1056/26/5/054207

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Dynamically controlled optical nonreciprocity of a double-ladder system with spontaneously generated coherence in moving atomic optical lattice

Nuo Ba(巴诺), Xiang-Yao Wu(吴向尧), Dong-Fei Li(李东飞), Dan Wang(王丹), Jin-You Fei(费金有), Lei Wang(王磊)   

  1. 1 College of Physics, Jilin Normal University, Siping 136000, China;
    2 College of Physics, Jilin University, Changchun 130012, China
  • 收稿日期:2016-11-02 修回日期:2016-12-20 出版日期:2017-05-05 发布日期:2017-05-05
  • 通讯作者: Nuo Ba E-mail:banuo2008@163.com
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11347137, 11247201, and 11247005) and the Twelfth Five-year Program for Science and Technology of Education Department of Jilin Province, China (Grant No. 20150215).

Dynamically controlled optical nonreciprocity of a double-ladder system with spontaneously generated coherence in moving atomic optical lattice

Nuo Ba(巴诺)1, Xiang-Yao Wu(吴向尧)1, Dong-Fei Li(李东飞)1, Dan Wang(王丹)1, Jin-You Fei(费金有)1, Lei Wang(王磊)2   

  1. 1 College of Physics, Jilin Normal University, Siping 136000, China;
    2 College of Physics, Jilin University, Changchun 130012, China
  • Received:2016-11-02 Revised:2016-12-20 Online:2017-05-05 Published:2017-05-05
  • Contact: Nuo Ba E-mail:banuo2008@163.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11347137, 11247201, and 11247005) and the Twelfth Five-year Program for Science and Technology of Education Department of Jilin Province, China (Grant No. 20150215).

摘要:

A four-level double-ladder cold atoms system with spontaneously generated coherence trapped in a moving optical lattice is explored to achieve optical nonreciprocity. When spontaneously generated coherence (SGC) is present, the remarkable contrast optical nonreciprocity of light transmission and reflection can be generated at each induced photonic bandgap in the optical lattice with a velocity of a few m/s. However, when the SGC effect is absent, the optical nonreciprocity becomes weak or even vanishing due to the strong absorption. It is found that the optical nonreciprocity is related to the asymmetric Doppler effect in transmission and reflection, meanwhile the degree and position of optical nonreciprocity can be tuned by the SGC effect and the Rabi frequency of the trigger field.

关键词: atomic coherence, optical nonreciprocity, atomic lattice, photonic band gap

Abstract:

A four-level double-ladder cold atoms system with spontaneously generated coherence trapped in a moving optical lattice is explored to achieve optical nonreciprocity. When spontaneously generated coherence (SGC) is present, the remarkable contrast optical nonreciprocity of light transmission and reflection can be generated at each induced photonic bandgap in the optical lattice with a velocity of a few m/s. However, when the SGC effect is absent, the optical nonreciprocity becomes weak or even vanishing due to the strong absorption. It is found that the optical nonreciprocity is related to the asymmetric Doppler effect in transmission and reflection, meanwhile the degree and position of optical nonreciprocity can be tuned by the SGC effect and the Rabi frequency of the trigger field.

Key words: atomic coherence, optical nonreciprocity, atomic lattice, photonic band gap

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.Wk (Mechanical effects of light on material media, microstructures and particles) 42.70.Qs (Photonic bandgap materials)