Buffer gas loaded magneto-optical traps for Yb, Tm, Er and Ho

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Buffer gas loaded magneto-optical traps for Yb, Tm, Er and Ho

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Title: Buffer gas loaded magneto-optical traps for Yb, Tm, Er and Ho
Author: Hemmerling, Boerge; Drayna, Garrett Korda; Chae, Eunmi; Ravi, Aakash; Doyle, John M.

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Citation: Hemmerling, Boerge, Garrett K Drayna, Eunmi Chae, Aakash Ravi, and John M Doyle. 2014. “Buffer Gas Loaded Magneto-Optical Traps for Yb, Tm, Er and Ho.” New J. Phys. 16 (6) (June 30): 063070. doi:10.1088/1367-2630/16/6/063070.
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Abstract: Direct loading of lanthanide atoms into magneto-optical traps (MOTs) from a very slow cryogenic buffer gas beam source is achieved, without the need for laser slowing. The beam source has an average forward velocity of 60– − 70ms 1 and a velocity half-width of ∼ − 35 m s 1 , which allows for direct MOT loading of Yb, Tm, Er and Ho. Residual helium background gas originating from the beam results in a maximum trap lifetime of about 80 ms (with Yb). The addition of a single-frequency slowing laser applied to the Yb in the buffer gas beam increases the number of trapped Yb atoms to 1.3 (0.7) 10 × 8 with a loading rate of × − 2.0 (1.0) 10 atoms s 10 1. Decay to metastable states is observed for all trapped species and decay rates are measured. Extension of this approach to the loading of molecules into a MOT is discussed.
Published Version: doi:10.1088/1367-2630/16/6/063070
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:27877635
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