Title :
Optical lattices for atomic fountain frequency standards
Author :
Phillips, W.D. ; Golding, W.M. ; Kastberg, A. ; Rolston, S.L. ; Spreeuw, R.J.C.
Author_Institution :
Atomic Phys. Div., Nat. Inst. of Stand. & Technol., Gaithersburg, MD, USA
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 μK. Such low temperatures should improve the performance of atomic fountain frequency standards
Keywords :
atomic beams; frequency measurement; measurement standards; radiation pressure; 0.7 muK; adiabatic expansion; atomic fountain frequency standards; laser cooling; neutral atoms; optical lattice; optical lattices; Atom lasers; Atom optics; Atomic beams; Atomic clocks; Atomic measurements; Cooling; Laser theory; Lattices; Resonance; Temperature;
Conference_Titel :
Frequency Control Symposium, 1994. 48th., Proceedings of the 1994 IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-1945-1
DOI :
10.1109/FREQ.1994.398266
