Dynamic light storage in coherently induced cavity of cold atoms
-
摘要:将行波耦合 、驻波光栅 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 、光栅 和静磁场进行时间调制,将一个弱探测 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。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.
-
[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. -
点击查看大图
计量
- 文章访问数:4446
- HTML全文浏览量:538
- PDF下载量:1892
- 被引次数:0
下载:
