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arXiv 1706.09698physics.atom-phcond-mat.quant-gas
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近共振光通过稠密冷原子层的传输

Transmission of near-resonant light through a dense slab of cold atoms

Laura Corman, Jean-Loup Ville, Raphaël Saint-Jalm, Monika Aidelsburger, Tom Bienaimé, Sylvain Nascimbène, Jean Dalibard, Jérôme Beugnon

摘要:

随机定位的共振散射体的光学性质是一个根本性的困难问题,要解决的密度和几何形状的范围很广。我们用近共振光探测一团稠密的铷原子云来进行实验研究。原子被限制在具有亚波长厚度的板状几何结构中。我们探测云的光学响应,因为它的密度,因此光致偶极-偶极相互作用的强度增加。我们还描述了一个耦合偶极子模拟的基础上,进一步补充微扰方法的理论研究。该模型定性地再现了光学深度饱和、跃迁展宽和共振蓝移的实验观察。

英文摘要:

The optical properties of randomly positioned, resonant scatterers is a fundamentally difficult problem to address across a wide range of densities and geometries. We investigate it experimentally using a dense cloud of rubidium atoms probed with near-resonant light. The atoms are confined in a slab geometry with a sub-wavelength thickness. We probe the optical response of the cloud as its density and hence the strength of the light-induced dipole-dipole interactions are increased. We also describe a theoretical study based on a coupled dipole simulation which is further complemented by a perturbative approach. This model reproduces qualitatively the experimental observation of a saturation of the optical depth, a broadening of the transition and a blue shift of the resonance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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