Take a sneak peek at the new NIST.gov and let us know what you think!
(Please note: some content may not be complete on the beta site.).
NIST Authors in Bold
|Author(s):||Gregory W. Hoth; Elizabeth A. Donley; John E. Kitching;|
|Title:||Atom numbers in magneto-optic traps with millimeter scale laser beams|
|Published:||February 22, 2013|
|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<2.3~mm.|
|Pages:||pp. 661 - 663|
|Keywords:||laser cooling and trapping,magneto-optical trap (MOT)|
|PDF version:||Click here to retrieve PDF version of paper (486KB)|