| Original Articles |
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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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| Cite this article: |
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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.
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| Keywords:
42.50.Gy
42.50.Hz
32.70.-n
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Published: 01 January 2004
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| PACS: |
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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42.50.Hz
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(Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)
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32.70.-n
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(Intensities and shapes of atomic spectral lines)
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