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Local Modulation of Double Electromagnetically Induced Transparency Spectrum |
| HOU Bang-Pin1;WANG Shun-Jin2;YU Wan-Lun3;SUN Wei-Li1 |
| 1Department of Physics, Sichuan Normal University, Chengdu 6100682Department of Physics, Sichuan University, Chengdu 6100643Chengdu University of Information Technology, Chengdu 610041 |
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| Cite this article: |
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HOU Bang-Pin, WANG Shun-Jin, YU Wan-Lun et al 2007 Chin. Phys. Lett. 24 2579-2582 |
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Abstract The double electromagnetically induced transparency induced by two coupling fields can be realized in a four-level tripod-type atom. Such double transparency spectra can be locally modulated by using the weak coherent fields to perturb the coupling transitions. These investigations within this scheme can be independent of Doppler broadening by properly orienting these fields.
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| Keywords:
42.50.Gy
42.50.Hz
42.50.-p
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Received: 28 January 2007
Published: 16 August 2007
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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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42.50.-p
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(Quantum optics)
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