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Phys. Rev. A 73, 011402(R) (2006) [4 pages]

Simultaneous magneto-optical trapping of three atomic species

M. Taglieber, A.-C. Voigt, F. Henkel, S. Fray, T. W. Hänsch, and K. Dieckmann
Department für Physik der Ludwig-Maximilians-Universität, Schellingstrasse 4, 80799 Munich, Germany and Max-Planck-Institut für Quantenoptik, 85748 Garching, Germany
Rapid Received 3 November 2005; published 24 January 2006

We report on the simultaneous trapping of two fermionic species, 6Li and 40K, and a bosonic species, 87Rb, demonstrating the first three-species magneto-optical trap ("triple MOT"). The apparatus including the atom sources and the three laser systems is described, and the single-species MOTs and the triple MOT are characterized. In triple MOT operation, typical atom numbers of 3.2×107 for 6Li, 1.5×107 for 40K, and 5.4×109 for 87Rb were achieved. Trap loss due to interspecies collisions was observed. We describe our way to optimize the triple MOT and turn it into a suitable source for the goal to achieve quantum degeneracy by evaporative and sympathetic cooling.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevA.73.011402
DOI: 10.1103/PhysRevA.73.011402
PACS: 32.80.Pj; 39.25.+k; 03.75.Ss; 34.50.Rk
  • 32.80.Pj
    Optical cooling of atoms; trapping
  • 39.25.+k
    Atom manipulation including scanning probe microscopy, laser cooling, etc
  • 03.75.Ss
    Degenerate Fermi gases
  • 34.50.Rk
    Laser-modified scattering and reactions (atoms and molecules)
  • YEAR: 2006
KEYWORDS: lithium, potassium, rubidium, magneto-optical effects, laser cooling, fermion systems, boson systems

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