Nonlocal Nonlinear Optics in Cold Rydberg Gases
Nonlocal Nonlinear Optics in Cold Rydberg Gases
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DOI：
10.1103/physrevlett.107.153001
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发表时间：
2011-10-03
影响因子：
8.6
通讯作者：
Pohl, T.
中科院分区：
文献类型：
--
作者：
Sevincli, S.;Henkel, N.;Pohl, T.
我们提出了一个强相互作用里德堡气体的非线性光学响应的电磁感应透明的条件下的分析理论。三阶光学极化率的简单公式推导和最近的实验结果是非常吻合的。所得到的表达式揭示了强烈的非线性，这另外是高度非局部字符。这个属性连同巨大的强度的里德伯引起的非线性显示，产生一个独特的实验室平台的非线性波现象，如在自散焦介质中的脉冲逮捕调制不稳定性。
We present an analytical theory for the nonlinear optical response of a strongly interacting Rydberg gas under conditions of electromagnetically induced transparency. Simple formulas for the third-order optical susceptibility are derived and shown to be in excellent agreement with recent experiments. The obtained expressions reveal strong nonlinearities, which in addition are of highly nonlocal character. This property together with the enormous strength of the Rydberg-induced nonlinearities is shown to yield a unique laboratory platform for nonlinear wave phenomena, such as collapse-arrested modulational instabilities in a self-defocusing medium.