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Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS)

Optical lattices for atomic fountain frequency standards

William D. Phillips, WILLIAM M. GOLDING, Anders Kastberg, S. L. Rolston, R. J. C. Spreeuw

Published Dec 17, 2002• 0 citations
Publisher

Abstract

Atomic fountain frequency standards require extremely low temperature atomic samples. Laser cooling of neutral atoms has achieved temperatures of a few microkelvin, but even such low temperatures still present difficulties. Here we report laser cooling in an optical lattice, along with cooling by adiabatic expansion, that gives a temperature of 0.7 /spl mu/K. Such low temperatures should improve the performance of atomic fountain frequency standards.>

DOI
10.1109/freq.1994.398266

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Atomic fountain frequency standards require extremely low temperature atomic samples. Laser cooling of neutral atoms has achieved temperatures of a few microkelvin, but even such low temperatures still present difficulties. Here we report laser cooling in an optical lattice, along with cooling by adiabatic expansion, that gives a temperature of 0.7 /spl mu/K. Such low temperatures should improve the performance of atomic fountain frequency standards.>
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