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arXiv · 1705.10288

Radio Frequency Magneto-Optical Trapping of CaF with High Density

Loic Anderegg·Benjamin Augenbraun·Eunmi Chae·Boerge Hemmerling·Nicholas R. Hutzler·Aakash Ravi·Alejandra Collopy·Jun Ye·Wolfgang Ketterle·John Doyle
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Abstract

We demonstrate significantly improved magneto-optical trapping of molecules using a very slow cryogenic beam source and RF modulated and DC magnetic fields. The RF MOT confines $1.1(3) \times 10^5$ CaF molecules at a density of $4(1) \times 10^6$ cm$^{-3}$, which is an order of magnitude greater than previous molecular MOTs. Near Doppler-limited temperatures of $340(20)$ $μ$K are attained. The achieved density enables future work to directly load optical tweezers and create optical arrays for quantum simulation.

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Loic Anderegg, Benjamin Augenbraun, Eunmi Chae, Boerge Hemmerling, Nicholas R. Hutzler, Aakash Ravi, Alejandra Collopy, Jun Ye, Wolfgang Ketterle, John Doyle. 2017-05-29. Radio Frequency Magneto-Optical Trapping of CaF with High Density. https://doi.org/10.1103/physrevlett.119.103201

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