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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Superradiant light scattering and grating formation in cold atomic vapours
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Superradiant light scattering and grating formation in cold atomic vapours

机译：冷原子蒸气中的超辐射光散射和光栅形成

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摘要

A semi-classical theory of coherent light scattering from an elongated sample of cold atoms exposed to an off-resonant laser beam is presented. The model, which is a direct extension of that of the collective atomic recoil laser, describes the emission of two superradiant pulses along the sample's major axis simultaneous with the formation of a bidimensional atomic grating inside the sample. It provides a simple physical picture of the recent observation of collective light scattering from a Bose-Einstein condensate [Science 285 (1999) 571]. In addition, the model provides an analytical description of the temporal evolution of the scattered light intensity which shows good quantitative agreement with the experimental results of Inouye et al.
机译：提出了一个半经典的理论，即从暴露于非共振激光束的冷原子的细长样本中进行相干光散射。该模型是集体原子反冲激光器的直接扩展模型，描述了沿样品主轴的两个超辐射脉冲的发射，同时在样品内部形成了二维原子光栅。它提供了一个简单的物理图像，显示了最近从Bose-Einstein冷凝物中收集到的集体光散射的情况[Science 285（1999）571]。此外，该模型提供了散射光强度随时间变化的分析描述，与Inouye等人的实验结果显示出良好的定量一致性。

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