Magneto-optic trap using a reversible, solid-state alkali-metal source

Kang, S. and Moore, K. R. and McGilligan, J. P. and Mott, R. and Mis, A. and Roper, C. and Donley, E. A. and Kitching, J. (2019) Magneto-optic trap using a reversible, solid-state alkali-metal source. Optics Letters, 44 (12). pp. 3002-3005. ISSN 0146-9592 (https://doi.org/10.1364/OL.44.003002)

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Abstract

We demonstrate a novel way to form and deplete a vapor-cell magneto-optic trap (MOT) using a reversible, solid-state alkali-metal source via an applied polarized voltage. Using ∼100 mW of electrical power, a trapped-atom number of 5 × 106 has been achieved, starting from near zero and the timescales of the MOT formation and depletion of ∼1 s. This fast, reversible, and low-power alkali-atom source is desirable in both tabletop and portable cold-atom systems. The core technology of this device should translate readily to other alkali and alkaline-earth elements that could find a wide range of uses in cold-atom systems and instruments.