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MO: Fachverband Molekülphysik

MO 22: Poster – Cold Molecules (joint session MO/Q)

MO 22.1: Poster

Mittwoch, 4. März 2026, 17:00–19:00, Philo 1. OG

Progress on Zeeman slowing CaF — •Julius Niederstucke, Timo Poll, Paul Kaebert, Sebastian Anskeit, Mirco Sierke, and Silke Ospelkaus — Leibniz Uni Hannover

Significant advancements have recently been achieved in direct laser cooling of molecules, bringing them to temperatures near absolute zero [1, 2]. However, the number of molecules that can be captured from molecular beams using conventional laser cooling methods remains a limiting factor in such experiments [3, 4]. In this work, we present strategies to enhance the yield of molecules in such experiments. To this end, we present our experimental findings on the Zeeman slower developed for directly laser-coolable molecules, as proposed by our group [5], and outline the initial steps towards creating a sub-Doppler engineered red magneto-optical trap [6,7]. [1] J. F. Barry et al. 2012 [2] Y. Wu et al. 2021 [3] S. Truppe et al. 2017 [4] L. Anderegg et al. 2017 [5] M. Petzold et al. 2018 [6] S. Xu et al. 2021 [7] S. Xu et al. 2022

Keywords: CaF; Slowing; Trapping; Subdoppler