标题： 二维原子阵列散射光中的合作共振 显示英文标题

标题： Cooperative resonances in light scattering from two-dimensional atomic arrays

摘要： 我们研究了二维（2D）偶极阵列的光散射，并展示了如何通过适当选择晶格常数（该晶格常数与入射波长相当）来调整这种散射。 特别是，我们证明了在这种阵列中，对于接近单个原子共振频率且具有较宽入射角度和频率范围内的光，可以实现近乎完美的反射镜功能。 这些结果可以用二维阵列支持的表面模式的协同共振来理解。 讨论了实验实现，包括使用被困原子和二维半导体材料中的激子的超冷阵列，以及从原子级薄的超表面到单光子非线性光学和纳米机械学的潜在应用。 显示英文摘要

摘要： We consider light scattering off a two-dimensional (2D) dipolar array and show how it can be tailored by properly choosing the lattice constant of the order of the incident wavelength. In particular, we demonstrate that such arrays can operate as nearly perfect mirrors for a wide range of incident angles and frequencies close to the individual atomic resonance. These results can be understood in terms of the cooperative resonances of the surface modes supported by the 2D array. Experimental realizations are discussed, using ultracold arrays of trapped atoms and excitons in 2D semiconductor materials, as well as potential applications ranging from atomically thin metasurfaces to single photon nonlinear optics and nanomechanics.