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Radio Frequency Magneto-Optical Trapping of CaF with High Density

Anderegg, Loïc and Augenbraun, Benjamin L. and Chae, Eunmi and Hemmerling, Boerge and Hutzler, Nicholas R. and Ravi, Aakash and Collopy, Alejandra and Ye, Jun and Ketterle, Wolfgan and Doyle, John M. (2017) Radio Frequency Magneto-Optical Trapping of CaF with High Density. Physical Review Letters, 119 (10). Art. No. 103201. ISSN 0031-9007. doi:10.1103/PhysRevLett.119.103201.

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We demonstrate significantly improved magneto-optical trapping of molecules using a very slow cryogenic beam source and either rf modulated or dc magnetic fields. The rf magneto-optical trap (MOT) confines 1.0(3)×10^5 CaF molecules at a density of 7(3)×10^6  cm^(−3), which is an order of magnitude greater than previous molecular MOTs. Near Doppler-limited temperatures of 340(20)  μK are attained. The achieved density enables future work to directly load optical tweezers and create optical arrays for quantum simulation.

Item Type:Article
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URLURL TypeDescription Paper
Anderegg, Loïc0000-0002-4282-3369
Hemmerling, Boerge0000-0002-3853-3983
Hutzler, Nicholas R.0000-0002-5203-3635
Ye, Jun0000-0003-0076-2112
Additional Information:© 2017 American Physical Society. Received 30 May 2017; published 6 September 2017. We acknowledge the experimental contributions of Garrett Drayna. This work was supported by the ARO, the AFOSR, and the NSF. B. L. A. acknowledges support from the NSF GRFP. We would like to thank Dave DeMille and Michael Tarbutt for helpful discussions and the Tarbutt group for confirming the v=3 repump frequency.
Funding AgencyGrant Number
Army Research Office (ARO)UNSPECIFIED
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
NSF Graduate Research FellowshipUNSPECIFIED
Issue or Number:10
Record Number:CaltechAUTHORS:20170830-132536318
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80965
Deposited By: Ruth Sustaita
Deposited On:05 Sep 2017 17:51
Last Modified:15 Nov 2021 19:40

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