Cold Atoms
Welcome to the Cold Atoms group at the Department of Molecular and Optical Physics, University of Freiburg, Germany.

Ion-Recoil Momentum Spectroscopy in a Laser-Cooled Atomic Sample
Steffen Wolf and Hanspeter Helm
Albert-Ludwigs-Universität, Fakultät für Physik, Hermann-Herder-Straße 3, D-79104 Freiburg im Breisgau, Germany


We report an experiment on recoil-ion momentum spectroscopy of Rb 1 ions formed by two-photon ionization of Rb 2 P 3/2 at 790 nm. Laser-cooled atoms in a magneto-optic trap are used as the target in time-of-flight analysis of the recoil momentum. We demonstrate a resolution of 1 meV with a limiting momentum resolution below dp50.05 a.u. We also show the use of the photoionization technique for the characterization of cold atomic samples.

©2000 The American Physical Society

DOI: 10.1103/PhysRevA.62.043408
PACS: 32.80.Pj, 32.80.Rm, 34.50.-s

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