Three-dimensional cavity cooling and trapping in an optical lattice

A robust scheme for trapping and cooling atoms is described. It combines a deep dipole-trap which localizes the atom in the center of a cavity with a laser directly exciting the atom. In that way one obtains three-dimensional cooling while the atom is dipole-trapped. In particular, we identify a coo...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2006-06, Vol.73 (6)
Main Authors: Murr, K., Nussmann, S., Puppe, T., Hijlkema, M., Weber, B., Webster, S. C., Kuhn, A., Rempe, G.
Format: Article
Language:English
Subjects:
AMPLITUDES
ATOMIC AND MOLECULAR PHYSICS
ATOMS
CAVITY RESONATORS
COOLING
DIPOLES
HEATING RATE
IONS
MODULATION
PHOTON-ATOM COLLISIONS
TRAPPING
TRAPS
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Summary:A robust scheme for trapping and cooling atoms is described. It combines a deep dipole-trap which localizes the atom in the center of a cavity with a laser directly exciting the atom. In that way one obtains three-dimensional cooling while the atom is dipole-trapped. In particular, we identify a cooling force along the large spatial modulations of the trap. A feature of this setup, with respect to a dipole trap alone, is that all cooling forces keep a constant amplitude if the trap depth is increased simultaneously with the intensity of the probe laser. No strong coupling is required, which makes such a technique experimentally attractive. Several analytical expressions for the cooling forces and heating rates are derived and interpreted by analogy to ordinary laser cooling.
ISSN:1050-2947
1094-1622
DOI:10.1103/PHYSREVA.73.0