相干诱导冷原子微腔中的动态光存储

吴金辉; 谷开慧; 国秀珍; 韩颖

相干诱导冷原子微腔中的动态光存储

1.
长春理工大学光电信息学院,吉林长春 130012;
2.
吉林大学物理学院,吉林长春 130012

基金项目:

国家自然科学基金资助项目(No.10874057)

详细信息

作者简介:

吴金辉(1975—),男,黑龙江讷河人,教授,博士生导师,主要从事量子光学领域有关激光诱导原子相干效应等方面的研究。E-mail:jhwu@jlu.edu.cn

中图分类号: O431.2
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出版历程
- 收稿日期: 2010-04-11
- 修回日期: 2010-06-13
- 刊出日期: 2010-08-25

Dynamic light storage in coherently induced cavity of cold atoms

1.
College of Optical and Electronical Information,Changchun University of Science and Technology,Changchun 130012,China;
2.
College of Physics,Jilin University,Changchun 130012,China

摘要

摘要: 将行波耦合激光、驻波光栅激光和静磁场作用于一个超冷原子系综,获得了由两个Bragg反射区和一个电磁感应透明区构成的动态可控光学微腔。对耦合激光、光栅激光和静磁场进行时间调制,将一个弱探测激光送入这一相干诱导光学微腔,使其形成周期振荡,然后再根据需要在一定时间延迟之后将其导出,将这一伴随着较弱能量损耗的探测脉冲受限传播过程视为一个有效的动态光存储机制。对提出的信息存储机制进行了数值模拟,讨论了它的优点和实用价值,提出了它的发展前景。
- 相干诱导光学微腔 /
- 动态光存储 /
- 电磁感应透明 /
- 超冷原子系综
Abstract: By applying a traveling-wave coupling field, a standing-wave grating field, and a static magnetic field to a cold atomic ensemble, a dynamically controlled cavity consisting of two Bragg regions of high reflection and an electromagnetically induced transparency region with high transmission is realized. With modulating all the three fields in time, a weak probe pulse is sent into the coherently induced optical cavity to achieve several periodic oscillations and then it is retrieved after a short time. This physical phenomenon is accompanied with little energy loss and can be regarded as an efficient scheme for dynamic light storage. This paper simulates the dynamic light storage scheme, discusses numerically its advantages and presents the developing trend of the scheme.
- coherently induced cavity /
- dynamic light storage /
- electromagnetically induced transparency /
- cold atomic ensemble

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参考文献(1)

[1] KIMBLE H J. The quantum internet [J]. Nature,2008,453:1023-1030. [2] FLEISCHHAUER M,IMAMOGLU A,MARANGOS J P. Electromagnetically induced transparency:optics in coherent media [J]. Rev. Mod. Phys.,2005,77:633-673. [3] FLEISCHHAUER M,LUKIN M D. Dark-state polaritons in electromagnetically induced transparency [J]. Phys. Rev. Lett.,2000,84:5094-5097. [4] LIU C, DUTTON Z,BEHROOZI C H,et al. Observation of coherent optical information storage in an atomic medium using halted light pulses [J]. Nature,2001,409:490-493. [5] BAJCSY M,ZIBROV A S,LUKIN M D. Stationary pulses of light in an atomic medium [J]. Nature,2003,426:638-641. [6] LIN Y W,LIAO W T,PETERS T,et al. Stationary light pulses in cold atomic media and without Bragg gratings [J]. Phys. Rev. Lett.,102:213601. [7] WU J H,ARTONI M,LAROCCA G C. All-optical light confinement in dynamic cavities in cold atoms [J]. Phys. Rev. Lett.,2009,103:133601. [8] BORN M, WOLF E. Principles of Optics [M]. Cambridge:Cambridge University Press,1999.

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