使用可逆固态碱金属源的磁光阱。
Magneto-optic trap using a reversible, solid-state alkali-metal source.
作者信息
Kang S, Moore K R, McGilligan J P, Mott R, Mis A, Roper C, Donley E A, Kitching J
出版信息
Opt Lett. 2019 Jun 15;44(12):3002-3005. doi: 10.1364/OL.44.003002.
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 5×10 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.
摘要
我们展示了一种新颖的方法，通过施加极化电压，利用可逆的固态碱金属源来形成和耗尽汽态池磁光阱（MOT）。从接近零开始，使用约100毫瓦的电功率，已实现了5×10的俘获原子数，并且MOT形成和耗尽的时间尺度约为1秒。这种快速、可逆且低功耗的碱原子源在桌面型和便携式冷原子系统中都很理想。该设备的核心技术应该很容易转化到其他碱金属和碱土元素上，这些元素在冷原子系统和仪器中会有广泛的用途。
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