Cold Atoms
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Ion recoil energy measurement in photoionization of laser-cooled rubidium
Steffen Wolf and Hanspeter Helm
Department of Molecular and Optical Physics, Albert-Ludwigs-Universität, Freiburg, Germany

Abstract:

We report a measurement of the ion recoil energy in photoionization of laser-cooled atoms. 87Rb, cooled in a magneto-optical trap, is two-photon ionized by a pulsed laser. The recoil energy is determined by time-of-flight in a weak electric field. A resolution in the range of 1 µeV is demonstrated.
Refinement of the technique promises resolution in the range of several neV to be feasible.

©1997 The American Physical Society

URL: http://link.aps.org/abstract/PRA/v56/pR4385
DOI: 10.1103/PhysRevA.56.R4385
PACS: 32.80.Pj, 32.80.Rm


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