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arXiv 1711.04440physics.optics
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利用主动拉曼增益在快光介质中存储和提取光脉冲

Storage and Retrieval of Light Pulses in a Fast-Light Medium via Active Raman Gain

Datang Xu, Zhengyang Bai, Guoxiang Huang

摘要:

提出了一种利用主动喇曼增益(ARG)机制实现光脉冲在快光介质中存储和提取的方案。所考虑的系统是一个四能级原子气体与三个(泵浦,信号和控制)激光场的相互作用。通过泵浦光场的ARG效应和控制光场的量子干涉效应,证明了信号光脉冲(即快光脉冲)在该系统中的超光速稳定传输是可能的。我们进一步表明,一个强大的存储和检索的光脉冲在这样的快光介质中,可以实现通过打开和关闭的泵和控制字段同时进行。本文报道的结果对于利用快光介质进行光信息处理和传输具有潜在的应用价值。

英文摘要:

We propose a scheme to realize the storage and retrieval of light pulses in a fast-light medium via a mechanism of active Raman gain (ARG). The system under consideration is a four-level atomic gas interacting with three (pump, signal and control) laser fields. We show that a stable propagation of signal light pulses with superluminal velocity (i.e. fast-light pulses) is possible in such system through the ARG contributed by the pump field and the quantum interference effect induced by the control field. We further show that a robust storage and retrieval of light pulses in such fast-light medium can be implemented by switching on and off the pump and the control fields simultaneously. The results reported here may have potential applications for light information processing and transmission using fast-light media.

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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