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Double-resonance optical-pumping effect and ladder-type electromagnetically induced transparency signal without Doppler background in cesium atomic vapour cell |
Yang Bao-Dong(杨保东), Gao Jing(高静), Liang Qiang-Bing(梁强兵), Wang Jie(王杰), Zhang Tian-Cai(张天才), and Wang Jun-Min(王军民)† |
State Key Laboratory of Quantum Optics and Quantum Optics Devices, and Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China |
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Abstract In a Doppler-broadened ladder-type cesium atomic system (6S1/2–6P3/2–8S1/2), this paper characterizes electromagnetically induced transparency (EIT) in two different experimental arrangements, and investigates the influence of the double-resonance optical-pumping (DROP) effect on EIT in both arrangements. When the probe laser is weak, DROP is explicitly suppressed. When the probe laser is moderate, population of the intermediate level (6P3/2 F'=5) is remarkable, therefore DROP is mixed with EIT. An interesting bimodal spectrum with the broad component due to DROP and the narrow part due to EIT has been clearly observed in cesium 6S1/2 F=4–6P3/2 F'=5–8S1/2 F"=4 transitions.
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Received: 13 August 2010
Revised: 19 September 2010
Accepted manuscript online:
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PACS:
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42.50.Gy
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(Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)
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32.80.Xx
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(Level crossing and optical pumping)
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42.62.Fi
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(Laser spectroscopy)
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Fund: Project partially supported by the National Natural Science Foundation of China (Grant Nos. 61078051, 60978017, 10974125 and 60821004), the NCET Project from the Education Ministry of China (Grant No. NCET-07-0524), the Specialized Research Fund for the Doctoral Program of China (Grant No. 20070108003). |
Cite this article:
Yang Bao-Dong(杨保东), Gao Jing(高静), Liang Qiang-Bing(梁强兵), Wang Jie(王杰), Zhang Tian-Cai(张天才), and Wang Jun-Min(王军民) Double-resonance optical-pumping effect and ladder-type electromagnetically induced transparency signal without Doppler background in cesium atomic vapour cell 2011 Chin. Phys. B 20 044202
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