Stable single light bullets and vortices and their active control in cold Rydberg gases
Stable single light bullets and vortices and their active control in cold Rydberg gases
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DOI：
10.1364/optica.6.000309
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发表时间：
2019-03-20
期刊：
影响因子：
10.4
通讯作者：
Huang, Guoxiang
中科院分区：
文献类型：
--
作者：
Bai, Zhengyang;Li, Weibin;Huang, Guoxiang
实现高维稳定的单光子弹和涡旋是非线性光学物理研究的长期目标。这种稳定的高维光脉冲的存储和检索可以提供多种应用。在这里，我们提出了一种在冷里德堡原子气体中产生这种光脉冲的方案。凭借电磁感应透明性，里德堡态中强烈的长程原子间相互作用被映射到光场，产生巨大的、快速响应的非局域克尔非线性，形成携带轨道角动量的光弹和光涡流，其产生功率极低，传播速度极慢，可以稳定传播，其稳定性是局域和非局域克尔非线性相结合所提供的。我们证明，所获得的光弹和涡流可以在系统中高效、保真地存储和检索。我们的研究为通过冷里德堡气体中的受控光学非线性来操纵高维非线性光学过程提供了一条新途径。由光学协会根据知识共享署名 4.0 许可条款发布。
Realizing single light bullets and vortices that are stable in high dimensions is a long-standing goal in the study of nonlinear optical physics. The storage and retrieval of such stable high-dimensional optical pulses may offer a variety of applications. Here, we present a scheme to generate such optical pulses in a cold Rydberg atomic gas. By virtue of electromagnetically induced transparency, strong, long-range atom-atom interaction in Rydberg states is mapped to light fields, resulting in a giant, fast-responding nonlocal Kerr nonlinearity and the formation of light bullets and vortices carrying orbital angular momenta, which have extremely low generation power and very slow propagation velocity, and can stably propagate, with the stability provided by the combination of local and nonlocal Kerr non-linearities. We demonstrate that the light bullets and vortices obtained can be stored and retrieved in the system with high efficiency and fidelity. Our study provides a new route for manipulating high-dimensional nonlinear optical processes via controlled optical nonlinearities in cold Rydberg gases. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License.