Blue-detuned Magneto-optical Trap of BaF molecules
Atomic Physics
2025-06-17 v1
Abstract
We report the realization of a blue-detuned magneto-optical trap (BDM) of BaF molecules. The (1 + 1) type BDM and (1 + 2) type conveyor-belt MOT are explored. While the (1+1) BDM provides only weak trapping force, the conveyor-belt MOT significantly compresses the molecular cloud, achieving a radius of 320(20) {\mu}m, a temperature of 240(60) {\mu}K, and a peak density of 1.3{\times}10^7 cm^{-3}, representing a significant improvement over the red MOT. Interestingly, the conveyor-belt MOT of BaF exhibits a large capture velocity, and the loading efficiency from red MOT reaches near unity even without gray molasses. We confirm this by directly loading slowed molecules into the conveyor-belt MOT.
Keywords
Cite
@article{arxiv.2506.12892,
title = {Blue-detuned Magneto-optical Trap of BaF molecules},
author = {Zixuan Zeng and Shoukang Yang and Shuhua Deng and Bo Yan},
journal= {arXiv preprint arXiv:2506.12892},
year = {2025}
}