Coherence effects in scattering order expansion of light by atomic clouds.
Coherence effects in scattering order expansion of light by atomic clouds.
复制标题
原子云对光的散射级扩展的相干效应。
DOI：
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发表时间：
2014
影响因子：
1.9
通讯作者：
N. Piovella
中科院分区：
文献类型：
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作者：
M. Rouabah;M. Samoylova;R. Bachelard;P. Courteille;R. Kaiser;N. Piovella
我们将冷原子集合的协同散射解释为多重散射过程。从描述N原子对探测光束响应的微观方程出发，我们将总散射场表示为多重散射事件的无限序列。作为该方法的一个应用，我们得到了高斯密度分布双散射近似中相干强度的解析表达式。特别是，我们量化了相干后向散射和前向散射的贡献。
We interpret cooperative scattering by a collection of cold atoms as a multiple-scattering process. Starting from microscopic equations describing the response of N atoms to a probe light beam, we represent the total scattered field as an infinite series of multiple-scattering events. As an application of the method, we obtain analytical expressions of the coherent intensity in the double-scattering approximation for Gaussian density profiles. In particular, we quantify the contributions of coherent backward and forward scattering.