Preparation of ultra-cold atomic-ensemble arrays using time-multiplexed optical tweezers

• DOI: 10.48550/arxiv.2203.11617
• Publication Date: 2022-01-01
• Authors: Katja Gosar; Vesna Pirc Jevšenak; Tadej Mežnaršič; Dušan Babić; I. Poberaj; Erik Zupanič; P. Jeglič
• Keywords: Trap (plumbing); Ultracold atom; Tweezers

We use optical tweezers based on time-multiplexed acousto-optic deflectors to trap ultra-cold cesium atoms in one-dimensional arrays of atomic ensembles. For temperatures between 2.5 $μ$K and 50 nK we study the maximal time tweezer pulses that retains number a single trap. This provides an estimate sites array tweezers. demonstrate evaporative cooling up 25 traps preparation box potential. Additionally, three different protocols for atomic-ensemble by transfer from expanding cloud. These result 74 ensembles consisting $\sim$100 average.