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Properties of Microelectromagnet Mirrors as Reflectors of Cold Rb Atoms

Authors
  • Drndic, M.
  • Zabow, G.
  • Lee, C. S.
  • Thywissen, J. H.
  • Johnson, K. S.
  • Prentiss, M.
  • Westervelt, R. M.
  • Featonby, P. D.
  • Savalli, V.
  • Cognet, L.
  • Helmerson, K.
  • Westbrook, N.
  • Westbrook, C. I.
  • Phillips, W. D.
  • Aspect, A.
Type
Published Article
Publication Date
Aug 19, 1999
Submission Date
Aug 19, 1999
Identifiers
DOI: 10.1103/PhysRevA.60.4012
arXiv ID: physics/9908038
Source
arXiv
License
Unknown
External links

Abstract

Cryogenically cooled microelectromagnet mirrors were used to reflect a cloud of free-falling laser-cooled 85Rb atoms at normal incidence. The mirrors consisted of microfabricated current-carrying Au wires in a periodic serpentine pattern on a sapphire substrate. The fluorescence from the atomic cloud was imaged after it had bounced off a mirror. The transverse width of the cloud reached a local minimum at an optimal current corresponding to minimum mirror roughness. A distinct increase in roughness was found for mirror configurations with even versus odd number of lines. These observations confirm theoretical predictions.

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