NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Magneto-optic trap using a reversible, solid-state alkali-metal source
Published
Author(s)
Songbai Kang, Kaitlin R. Moore, James P. McGilligan, R. Mott, A. Mis, C. Roper, Elizabeth A. Donley, John E. Kitching
Abstract
Fast, reversible, and low-power alkali-atom sources are desirable in both tabletop and portable cold-atom sensors. Here we demonstrate a magneto-optic trap (MOT) formed in conjunction with a reversible solid state Rb reservoir in a vapor cell. The results demonstrate experimental control of the number of atoms in the MOT via the voltage applied across the reservoir using ~ 10 mW of peak electrical power. Further investigation of the MOT loading shows that the Rb vapor pressure in the cell can be increased by 50 times, with a corresponding increase in the number of trapped atoms. The core technology of this device should translate readily to other alkali and alkaline-earth elements that may find a wide range of uses in cold-atom systems and instruments.
Kang, S.
, Moore, K.
, McGilligan, J.
, Mott, R.
, Mis, A.
, Roper, C.
, Donley, E.
and Kitching, J.
(2019),
Magneto-optic trap using a reversible, solid-state alkali-metal source, Nature Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=926505
(Accessed October 10, 2025)