A conveyor-belt magneto-optical trap of CaF

Yu, Scarlett S.; You, Jiaqi; Bao, Yicheng; Anderegg, Loic; Hallas, Christian; Li, Grace K.; Lim, Dongkyu; Chae, Eunmi; Ketterle, Wolfgang; Ni, Kang-Kuen

A conveyor-belt magneto-optical trap of CaF

Sep 23, 2024

7 pages

e-Print:

2409.15262 [physics.atom-ph]

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Abstract: (arXiv)

We report the experimental realization of a conveyor-belt magneto-optical trap for calcium monofluoride (CaF) molecules. The obtained highly-compressed cloud has a mean radius of 64(5)

\mu

m and a peak number density of

3.6(5) \times 10^{10}

cm

^{-3}

, a 600-fold increase over the conventional red-detuned MOTs of CaF, and the densest molecular MOT observed to date. Subsequent loading of these molecules into an optical dipole trap yields up to

2.6 \times 10^4

trapped molecules at a temperature of 14(2)

\mu

K with a peak phase-space density of

\sim 2.4 \times 10^{-6}

. This opens new possibilities for a range of applications utilizing high-density, optically trapped ultracold molecules.

Note:

7 pages; 4 figures; typos corrected

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