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Dependence of Electromagnetically Induced Transparency on Laser Linewidth |
| GUO Rui-Min;XIAO Feng; LIU Cheng;ZHANG Yu;CHEN Xu-Zong |
| Key Laboratory for Quantum Information and Measurement of Ministry of Education, School of Electronics Engineering and Computer Science, Peking University, Beijing 100871 |
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| Cite this article: |
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GUO Rui-Min, XIAO Feng, LIU Cheng et al 2003 Chin. Phys. Lett. 20 1507-1510 |
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Abstract The influence of the linewidth of coupling laser on the electromagnetically induced transparency (EIT) spectral width is theoretically investigated. The model to describe the EIT spectral width is based on the standard semi-classical theory. The result shows that the effect of the linewidth of coupling laser is equivalent to an additional relaxation between two ground states in the Λ-type configuration. A broadening linewidth of coupling laser implies the increasing relaxation between the two ground states, which will make the wider EIT spectral linewidth.
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| Keywords:
42.50.Gy
42.50.Hz
42.25.Bs
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Published: 01 September 2003
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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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42.25.Bs
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(Wave propagation, transmission and absorption)
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