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arXiv quant-ph/0309173quant-ph
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含缓冲气体的热Rb蒸气的群速度研究

Group velocity study in hot Rb vapor with buffer gas

Eugeniy E. Mikhailov, Yuri V. Rostovtsev, George R. Welch

摘要:

研究了多普勒展宽介质中电磁感应透明(EIT)条件下光的群速度行为。具体地说,我们展示了探测场和生成的斯托克斯场的群延迟(或群速度)如何依赖于驱动场和探测场的单光子失谐。我们发现,对于缓冲气体中的原子,群速度随着驱动场的正单光子失谐而减小,当驱动场为红失谐时,群速度增大。如果单光子失谐导致光与共振速度子组的相互作用,这种依赖性与预期的结果是反直觉的。

英文摘要:

We study the behavior of the group velocity of light under conditions of electromagnetically induced transparency (EIT) in a Doppler broadened medium. Specifically, we show how the group delay (or group velocity) of probe and generated Stokes fields depends on the one-photon detuning of drive and probe fields. We find that for atoms in a buffer gas the group velocity decreases with positive one-photon detuning of the drive fields, and increases when the fields are red detuned. This dependence is counter-intuitive to what would be expected if the one-photon detuning resulted in an interaction of the light with the resonant velocity subgroup.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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