AI 中文总结
该研究提出基于单纳米结构相位梯度的纳米级透镜机制，以单原子为量子探针验证效应，使单原子探测效率提升4倍，确立片上纳米结构为多功能量子光学平台，为量子应用提供新机遇。
AI 中文摘要
我们提出并验证了一种基于单纳米结构在近场中对光施加的相位梯度的纳米级透镜通用机制。我们利用衬底上的光波导验证该效应，以单原子作为量子探针，通过其荧光采样近场强度。这种量子探测技术为表征聚焦光场提供了独特的非破坏性方法，且使单原子探测效率提升4倍。本研究确立了片上纳米结构作为多功能量子光学平台，可高效路由光子、局域光场并增强原子-光子耦合，为捕获和操控单原子、实现用于量子应用的混合纳米光子-原子系统提供新机遇。
英文摘要
We propose and demonstrate a general mechanism for nanoscale lensing based on the phase gradient imposed by a single nanostructure scattering light in its near-field. We verify this effect using an optical waveguide on a substrate, with single atoms serving as quantum probes that sample the near-field intensity through their fluorescence. This quantum probing technique provides a unique, non-destructive approach to characterizing focused optical fields and reveals a 4-fold enhancement in single atom detection efficiency. This work establishes on-chip nanostructures as a multi-functional quantum optics platform that can efficiently route photons, localize fields, and enhance atom-photon coupling, offering new opportunities for trapping and manipulating single atoms and realizing hybrid nanophotonic-atomic systems for quantum applications.
Comments12 pages, 9 figures
