表面与邻近激发原子相互作用的波长依赖介电镜像系数的列表和临界分析
A Tabulation and Critical Analysis of the Wavelength-Dependent Dielectric Image Coefficient for the Interaction Exerted by a Surface onto a Neighbouring Excited Atom
摘要：
原子与介质表面的近场相互作用与原子到介质表面距离的立方成反比，其耦合强度取决于介质镜像系数。该系数在纯静电方法中简单地由（eps-1）/（eps+1）给出，其中eps为介电常数，该系数特定于各种相关原子跃迁中的每一个的频率：它以复杂的方式取决于体材料性质，并且可以表现出与表面极化激元模式相关的共振。我们在这里列出了大约一百个光学窗口的表面共振，这些窗口的体特性目前已制成表格。这项研究集中在红外域，因为它是最相关的原子表面相互作用。除了这个表格，我们讨论了简单的提示，以估计表面共振的位置，以及如何在大量的材料数据的不确定性显着影响图像系数的预测。我们还评估了材料的UV共振对图像系数的非共振部分的贡献。
英文摘要：
The near-field interaction of an atom with a dielectric surface is inversely proportional to the cube to the distance to the surface, and its coupling strength depends on a dielectric image coefficient. This coefficient, simply given in a pure electrostatic approach by (eps-1) / (eps+1) with eps the permittivity, is specific to the frequency of each of the various relevant atomic transition : it depends in a complex manner from the bulk material properties, and can exhibit resonances connected to the surface polariton modes. We list here the surface resonances for about a hundred of optical windows whose bulk properties are currently tabulated. The study concentrates on the infrared domain because it is the most relevant for atom-surface interaction. Aside from this tabulation, we discuss simple hints to estimate the position of surface resonances, and how uncertainties in the bulk data for the material dramatically affect the predictions for the image coefficient. We also evaluate the contribution of UV resonances of the material to the non resonant part of the image coefficient.
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