Andreoli Francesco, Mann Charlie-Ray, High Alexander A, Chang Darrick E
ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Spain.
Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL 60637, USA.
Nanophotonics. 2025 Jan 31;14(3):375-395. doi: 10.1515/nanoph-2024-0603. eCollection 2025 Feb.
Arrays of atomic emitters have proven to be a promising platform to manipulate and engineer optical properties, due to their efficient cooperative response to near-resonant light. Here, we theoretically investigate their use as an efficient metalens. We show that, by spatially tailoring the (subwavelength) lattice constants of three consecutive two-dimensional arrays of identical atomic emitters, one can realize a large transmission coefficient with arbitrary position-dependent phase shift, whose robustness against losses is enhanced by the collective response. To characterize the efficiency of this atomic metalens, we perform large-scale numerical simulations involving a substantial number of atoms ( ∼ 5 × 10) that is considerably larger than comparable works. Our results suggest that low-loss, robust optical devices with complex functionalities, ranging from metasurfaces to computer-generated holograms, could be potentially assembled from properly engineered arrays of atomic emitters.
由于原子发射体阵列对近共振光具有高效的协同响应，已被证明是一个用于操纵和设计光学特性的有前景的平台。在此，我们从理论上研究了它们作为高效超透镜的用途。我们表明，通过在空间上调整三个连续的相同原子发射体二维阵列的（亚波长）晶格常数，可以实现具有任意位置依赖相移的大透射系数，其对损耗的鲁棒性通过集体响应得到增强。为了表征这种原子超透镜的效率，我们进行了大规模数值模拟，涉及大量原子（约5×10个），这比同类研究要多得多。我们的结果表明，从超表面到计算机生成全息图等具有复杂功能的低损耗、鲁棒光学器件，有可能由经过适当设计的原子发射体阵列组装而成。
