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Chin. Opt. Lett.
 Home  List of Issues    Issue 01 , Vol. 04 , 2006    Absorption resonances in 'Lambda'-type three-level system in cesium vapor cell with buffer gas


Absorption resonances in 'Lambda'-type three-level system in cesium vapor cell with buffer gas
Jie Ma, Yanting Zhao, Lirong Wang, Jianming Zhao, Liantuan Xiao, Suotang Jia
State Key Laboratory of Quantum Optics and Quantum Optics Devices, College of Physics and Electronics Engineering, [Shanxi University], Taiyuan 030006

Chin. Opt. Lett., 2006, 04(01): pp.55-58-4

DOI:
Topic:Quantum optics
Keywords(OCIS Code): 020.1670  300.1030  300.3700  

Abstract
We report experimentally the transformation from the electromagnetically induced transparency (EIT) resonance to a dispersion-like signal and eventually to a nearly symmetric absorption resonance as coupling detuning increases in 'Lambda'-type three-level system in the cesium vapor cell with buffer gas at room temperature. The observed absorption resonance occupies some remarkable properties of the strong amplitude and the narrow linewidth in comparison with the case without buffer gas. The relation between linewidth of the enhanced absorption resonance and buffer gas pressure is studied. With pressure increasing, linewidth of the absorption resonance becomes narrow. The sub-natural linewidth is observed in Doppler-broadened cesium vapor cell in our experiment. The experimental results are in qualitative agreement with the numerical simulations.

Copyright: © 2003-2012 . This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Received:2002/11/4
Accepted:
Posted online:

Get Citation: Jie Ma, Yanting Zhao, Lirong Wang, Jianming Zhao, Liantuan Xiao, Suotang Jia, "Absorption resonances in 'Lambda'-type three-level system in cesium vapor cell with buffer gas," Chin. Opt. Lett. 04(01), 55-58-4(2006)

Note: This work was supported by the National Natural Science Foundation of China (No. 10174047) and the Natural Science Foundation of Shanxi Province. J. Zhao is the author to whom the correspondence should be addressed, her e-mail address is zhaojm@sxu.edu.cn.



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