Observation of linewidth narrowing due to a spontaneously generated coherence effect

doi:10.1088/1674-1056/21/6/064206

中国物理B ›› 2012, Vol. 21 ›› Issue (6): 64206-064206.doi: 10.1088/1674-1056/21/6/064206

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

Observation of linewidth narrowing due to a spontaneously generated coherence effect

田思聪^a, 王春亮^b, 康智慧^a, 杨秀彬^d, 万仁刚^c, 张晓军^a, 张航^d, 姜云^a, 崔海宁^a, 高锦岳^a

a. College of Physics, Jilin University, Changchun 130012, China and Key Laboratory of Coherent Light and Atomic and Molecular Spectroscopy of Ministry of Education, Jilin University, Changchun 130012, China;
b. College of Physics, Northeast Normal University, Changchun 130023, China;
c. State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China;
d. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

收稿日期:2011-10-12 修回日期:2011-11-01 出版日期:2012-05-01 发布日期:2012-05-01
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2011CB921603) and the National Natural Science Foundation of China (Grant Nos. 11074097, 10904048, 10974071, and 11004080).

Observation of linewidth narrowing due to a spontaneously generated coherence effect

Tian Si-Cong(田思聪)^a)†, Wang Chun-Liang(王春亮)^b), Kang Zhi-Hui(康智慧)^a), Yang Xiu-Bin(杨秀彬)^d) Wan Ren-Gang(万仁刚)^c), Zhang Xiao-Jun(张晓军)^a), Zhang Hang(张航)^d), Jiang Yun(姜云)^a), Cui Hai-Ning(崔海宁)^a), and Gao Jin-Yue(高锦岳)^a)†

a. College of Physics, Jilin University, Changchun 130012, China and Key Laboratory of Coherent Light and Atomic and Molecular Spectroscopy of Ministry of Education, Jilin University, Changchun 130012, China;
b. College of Physics, Northeast Normal University, Changchun 130023, China;
c. State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China;
d. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

Received:2011-10-12 Revised:2011-11-01 Online:2012-05-01 Published:2012-05-01
Contact: Tian Si-Cong, Gao Jin-Yue E-mail:jygao@mail.jlu.edu.cn
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2011CB921603) and the National Natural Science Foundation of China (Grant Nos. 11074097, 10904048, 10974071, and 11004080).

摘要/Abstract

摘要： We investigate the resonance fluorescence spectrum of an atomic three-level ladder system driven by two laser fields. We show that such a system emulates to a large degree a V-type atom with parallel dipole moments-the latter being a system that exhibits spontaneously generated coherence and can display ultrasharp spectral lines. We find a suitable energy scheme in a ⁸⁵Rb atom and experimentally observe the narrowing of the central peak in a rubidium atomic beam. The corresponding spectrum can convincingly demonstrate the existence of spontaneously generated coherence.

关键词: spontaneously generated coherence, resonance fluorescence, linewidth narrowing, atomic beam

Abstract: We investigate the resonance fluorescence spectrum of an atomic three-level ladder system driven by two laser fields. We show that such a system emulates to a large degree a V-type atom with parallel dipole moments-the latter being a system that exhibits spontaneously generated coherence and can display ultrasharp spectral lines. We find a suitable energy scheme in a ⁸⁵Rb atom and experimentally observe the narrowing of the central peak in a rubidium atomic beam. The corresponding spectrum can convincingly demonstrate the existence of spontaneously generated coherence.

Key words: spontaneously generated coherence, resonance fluorescence, linewidth narrowing, atomic beam

中图分类号: (Quantum optics)

42.50.-p

42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift) 42.50.Ct (Quantum description of interaction of light and matter; related experiments)

田思聪, 王春亮, 康智慧, 杨秀彬, 万仁刚, 张晓军, 张航, 姜云, 崔海宁, 高锦岳. Observation of linewidth narrowing due to a spontaneously generated coherence effect[J]. 中国物理B, 2012, 21(6): 64206-064206.

Tian Si-Cong(田思聪), Wang Chun-Liang(王春亮), Kang Zhi-Hui(康智慧), Yang Xiu-Bin(杨秀彬) Wan Ren-Gang(万仁刚), Zhang Xiao-Jun(张晓军), Zhang Hang(张航), Jiang Yun(姜云), Cui Hai-Ning(崔海宁), and Gao Jin-Yue(高锦岳) . Observation of linewidth narrowing due to a spontaneously generated coherence effect[J]. Chin. Phys. B, 2012, 21(6): 64206-064206.

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Observation of linewidth narrowing due to a spontaneously generated coherence effect

Observation of linewidth narrowing due to a spontaneously generated coherence effect

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