论文标题
使用真空中的非球形镜头物镜，在光学晶格中对Rydberg原子的高分辨率成像
High-resolution imaging of Rydberg atoms in optical lattices using an aspheric-lens objective in vacuum
论文作者
论文摘要
我们提出了一个高分辨率，简单且通用的系统，用于在光学晶格中成像Ultracold Rydberg原子。成像目标是一个单个非球形透镜（工作距离为20.6 mm，数值（Na）为0.51），位于真空室内。采用大型距离的镜头为电极和静电罩提供了空间，以控制Rydberg原子周围的电场。使用此设置，我们实现了1.10 $ $ m或$1.41λ$（$λ= 780 $ nm）的瑞利分辨率，受到非球形镜头的NA限制。对于具有封锁半径高于几美元的封锁半径的高度激发的Rydberg状态的系统，实现的分辨率足以研究许多感兴趣的物理过程。
We present a high-resolution, simple and versatile system for imaging ultracold Rydberg atoms in optical lattices. The imaging objective is a single aspheric lens (with a working distance of 20.6 mm and a numerical aperture (NA) of 0.51) placed inside the vacuum chamber. Adopting a large-working-distance lens leaves room for electrodes and electrostatic shields to control electric fields around Rydberg atoms. With this setup, we achieve an Rayleigh resolution of 1.10 $μ$m or $1.41λ$ ($λ=780$ nm), limited by the NA of the aspheric lens. For systems of highly excited Rydberg states with blockade radii greater than a few $μ$m, the resolution achieved is sufficient for studying many physical processes of interest.
