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Atom numbers in magneto-optic traps with millimeter scale laser beams

Published

Author(s)

Gregory W. Hoth, Elizabeth A. Donley, John E. Kitching

Abstract

We measure the number of atoms, N, that can be trapped in a conventional vapor cell MOT using beams that have a diameter d in the range 1-5 mm. We show that the N \propto d3.6 scaling law observed for larger MOTs is a robust approximation for optimized MOTs with beam diameters as small as $d\approx2$~mm. For smaller beams, the description of the scaling depends on how $d$ is defined. We suggest that to accurately describe the capture volume at high intensities, $d$ should be defined as the diameter where the intensity falls to $I=Isat . Using this definition, we find that $N$ scales as d6 for d
Citation
Optics Letters
Volume
38
Issue
5

Keywords

laser cooling and trapping, magneto-optical trap (MOT)

Citation

Hoth, G. , Donley, E. and Kitching, J. (2013), Atom numbers in magneto-optic traps with millimeter scale laser beams, Optics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=912925 (Accessed September 17, 2021)
Created February 22, 2013, Updated February 19, 2017