Chin. Phys. Lett.  2004, Vol. 21 Issue (1): 76-78    DOI:
Original Articles |
Electromagnetically Induced Absorption and Transparency Spectra of Degenerate Two-Level Systems with a Strong Coupling Field in Cs Vapour
ZHAO Yan-Ting;ZHAO Jian-Ming;XIAO Lian-Tuan;YIN Wang-Bao;JIA Suo-Tang
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Collage of Physics and Electronics Engineering, Shanxi University, Taiyuan 030006
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ZHAO Yan-Ting, ZHAO Jian-Ming, XIAO Lian-Tuan et al  2004 Chin. Phys. Lett. 21 76-78
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Abstract The electromagnetically induced absorption and electromagnetically induced transparency spectra of degenerate two-level systems with a strong coupling laser were observed. The frequency detuning and intensity effect of the coupling laser were demonstrated simultaneously. A dispersion-like spectrum can be obtained when the coupling laser is situated at blue-side detuning. The absorption inversion was realized when the coupling laser intensity is small. The coherent resonance has a linewidth much narrower than the natural linewidth of the optical transitions.

Keywords: 42.50.Gy      42.50.Hz      32.70.-n     
Published: 01 January 2004
PACS:  42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)  
  42.50.Hz (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)  
  32.70.-n (Intensities and shapes of atomic spectral lines)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2004/V21/I1/076
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ZHAO Yan-Ting
ZHAO Jian-Ming
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JIA Suo-Tang
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