Mordini C, Trypogeorgos D, Wolswijk L, Lamporesi G, Ferrari G
Opt Express. 2020 Sep 28;28(20):29408-29418. doi: 10.1364/OE.397567.
Partial transfer absorption imaging (PTAI) of ultracold atoms allows for repeated and minimally-destructive measurements of an atomic ensemble. Here, we present a reconstruction technique based on PTAI that can be used to piece together the non-uniform spatial profile of high-density atomic samples using multiple measurements. We achieved a thirty-fold increase of the effective dynamic range of our imaging, and were able to image otherwise saturated samples with unprecedented accuracy of both low- and high-density features.
超冷原子的部分转移吸收成像(PTAI)能够对原子系综进行重复且具有最小破坏性的测量。在此,我们提出一种基于PTAI的重建技术,该技术可用于通过多次测量拼凑出高密度原子样品的非均匀空间分布。我们将成像的有效动态范围提高了30倍,并且能够以前所未有的精度对原本饱和的样品进行成像,同时兼顾低密度和高密度特征。