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Direct Measurement of Light Speed Reduction in a Rubidium Vapor Medium Coherently Prepared by Electromagnetically Induced
Transparency |
| TU Xian-Hua;WANG Jin;JIANG Kai-Jun;HE Ming;LI Ke;ZHONG Jia-Qi;ZHAN Ming-Sheng |
| State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 |
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| Cite this article: |
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TU Xian-Hua, WANG Jin, JIANG Kai-Jun et al 2003 Chin. Phys. Lett. 20 1954-1956 |
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Abstract We have experimentally observed the reduction of light speed in a rubidium vapor medium coherently prepared by electromagnetically induced transparency. The light speed reduction was deduced by directly measuring the time delay of a probe light when it passed through the medium. The time delay varies with the intensity of the coupling laser, and the typical time delay we recorded was 1.8μs, corresponding to a light speed of 56000m/s.
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| Keywords:
42.50.Gy
32.80.Qk
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Published: 01 November 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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32.80.Qk
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(Coherent control of atomic interactions with photons)
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