All-optical light confinement in dynamic cavities in cold atoms.
All-optical light confinement in dynamic cavities in cold atoms.
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DOI：
10.1103/physrevlett.103.133601
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发表时间：
2009-09
影响因子：
8.6
通讯作者：
Jin-Hui Wu;M. Artoni;G. C. Rocca
中科院分区：
文献类型：
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作者：
Jin-Hui Wu;M. Artoni;G. C. Rocca
我们展示了如何在冷原子样品中实现动态磁光控制腔，其中可以根据需要限制和释放慢光脉冲。探测光脉冲从最初存储在腔内的原子自旋相干性中检索出来，随后被限制在慢光状态下，在长达几百微秒的时间间隔内几乎没有损失和扩散，然后从腔的任一侧提取。我们的原理验证方案说明了这种在冷原子中进行相干光限制和操纵的新机制的基本物理原理。这可以简化弱光脉冲之间非线性相互作用的实现，其中量子信息处理需要强原子-光子相互作用。
We show how to realize in a cold atomic sample a dynamic magneto-optically controlled cavity in which a slow-light pulse can be confined and released on demand. The probe optical pulse is retrieved from the atomic spin coherence initially stored within the cavity and is subsequently confined there subject to a slow-light regime with little loss and diffusion for time intervals as long as a few hundred microseconds before being extracted from either side of the cavity. Our proof-of-principle scheme illustrates the underlying physics of this new mechanism for coherent light confinement and manipulation in cold atoms. This may ease the realization of nonlinear interactions between weak light pulses where strong atom-photon interactions are required for quantum information processing.