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

doi:10.1088/1674-1056/21/11/114206

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

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

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/Abstract

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)

王飞, 龚成, 谭新玉, 石文星 . Continuously tunable sub-half-wavelength localization via coherent control of spontaneous emission[J]. 中国物理B, 2012, 21(11): 114206-114206.

Wang Fei (王飞), Gong Cheng (龚成), Tan Xin-Yu (谭新玉), Shi Wen-Xing (石文星 ). Continuously tunable sub-half-wavelength localization via coherent control of spontaneous emission[J]. Chin. Phys. B, 2012, 21(11): 114206-114206.

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

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

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