Accumulation of chromium metastable atoms into an Optical Trap
Atomic Physics
2009-11-13 v1
Abstract
We report the fast accumulation of a large number of metastable 52Cr atoms in a mixed trap, formed by the superposition of a strongly confining optical trap and a quadrupolar magnetic trap. The steady state is reached after about 400 ms, providing a cloud of more than one million metastable atoms at a temperature of about 100 microK, with a peak density of 10^{18} atoms.m^{-3}. We have optimized the loading procedure, and measured the light shift of the 5D4 state by analyzing how the trapped atoms respond to a parametric excitation. We compare this result to a theoretical evaluation based on the available spectroscopic data for chromium atoms.
Keywords
Cite
@article{arxiv.0705.1479,
title = {Accumulation of chromium metastable atoms into an Optical Trap},
author = {R. Chicireanu and Q. Beaufils and A. Pouderous and B. Laburthe-Tolra and E. Marechal and L. Vernac and J. -C. Keller and O. Gorceix},
journal= {arXiv preprint arXiv:0705.1479},
year = {2009}
}
Comments
7 pages, 5 Figures