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arXiv 0905.4649physics.atom-phphysics.optics
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原子拉曼光谱中的频率匹配

Frequency matching in light storage spectroscopy of atomic Raman transitions

Leon Karpa, Gor Nikoghosyan, Frank Vewinger, Michael Fleischhauer, Martin Weitz

摘要:

本文研究了在双光子失谐量变化的情况下,光场驱动的双光子耦合系统中光在原子样品中的存储。在存在电磁感应透明(EIT)的情况下,通过动态地改变群速度来存储光并从样品中取回光。结果表明,在EIT透明窗口内,对于任意的双光子失谐,提取光脉冲的载波频率都与原子基态跃迁和控制场的双光子共振频率相匹配.本文从理论和实验两方面研究了这种非光谱滤波效应。它可以用于双光子共振的高速精密测量,例如在光学磁力测量中。

英文摘要:

We investigate the storage of light in an atomic sample with a lambda-type coupling scheme driven by optical fields at variable two-photon detuning. In the presence of electromagnetically induced transparency (EIT), light is stored and retrieved from the sample by dynamically varying the group velocity. It is found that for any two-photon detuning of the input light pulse within the EIT transparency window, the carrier frequency of the retrieved light pulse matches the two-photon resonance frequency with the atomic ground state transition and the control field. This effect which is not based on spectral filtering is investigated both theoretically and experimentally. It can be used for high-speed precision measurements of the two-photon resonance as employed e.g. in optical magnetometry.

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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