中国物理B ›› 2012, Vol. 21 ›› Issue (11): 114206-114206.doi: 10.1088/1674-1056/21/11/114206

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

Continuously tunable sub-half-wavelength localization via coherent control of spontaneous emission

王飞a, 龚成b, 谭新玉a, 石文星c   

  1. a College of Science, New Energy Research Institute, China Three Gorges University, Yichang 443002, China;
    b State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    c School of Physics & Information Engineering, Jianghan University, Wuhan 430056, China
  • 收稿日期:2012-03-22 修回日期:2012-05-22 出版日期:2012-10-01 发布日期:2012-10-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11104163 and 11047011) and the Science Foundation of Hubei Province, China (Grant No. 2010CDZ055).

Continuously tunable sub-half-wavelength localization via coherent control of spontaneous emission

Wang Fei (王飞)a, Gong Cheng (龚成)b, Tan Xin-Yu (谭新玉)a, Shi Wen-Xing (石文星 )c   

  1. a College of Science, New Energy Research Institute, China Three Gorges University, Yichang 443002, China;
    b State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China;
    c School of Physics & Information Engineering, Jianghan University, Wuhan 430056, China
  • Received:2012-03-22 Revised:2012-05-22 Online:2012-10-01 Published:2012-10-01
  • Contact: Wang Fei E-mail:feiwang202@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11104163 and 11047011) and the Science Foundation of Hubei Province, China (Grant No. 2010CDZ055).

摘要: We propose a continuously tunable method of the sub-half-wavelength localization via the coherent control of the spontaneous emission of a four-level Y-type atomic system, which is coupled to three strong coupling fields including a standing-wave field together with a weak probe field. It is shown that the sub-half-wavelength atomic localization is realized for both resonance and off-resonance cases. Furthermore, by varying the probe detuning in succession, the positions of the two localization peaks are tuned continuously within a wide range of probe field frequencies, which provides convenience for the realization of sub-half-wavelength atomic localization experimentally.

关键词: sub-half-wavelength localization, spontaneous emission, atomic coherence

Abstract: We propose a continuously tunable method of the sub-half-wavelength localization via the coherent control of the spontaneous emission of a four-level Y-type atomic system, which is coupled to three strong coupling fields including a standing-wave field together with a weak probe field. It is shown that the sub-half-wavelength atomic localization is realized for both resonance and off-resonance cases. Furthermore, by varying the probe detuning in succession, the positions of the two localization peaks are tuned continuously within a wide range of probe field frequencies, which provides convenience for the realization of sub-half-wavelength atomic localization experimentally.

Key words: sub-half-wavelength localization, spontaneous emission, atomic coherence

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

  • 42.50.Gy
32.80.Qk (Coherent control of atomic interactions with photons)