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Quadratic dependence on temperature of Cs 0-0 hyperfine resonance frequency in single Ne buffer gas microfabricated vapour cell

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8 Author(s)
D. Miletic ; Physics Department, UniNe, Avenue Bellevaux 51, Neuchatel 2000, Switzerland ; P. Dziuban ; R. Boudot ; M. Hasegawa
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Presented is the observation of a quadratic temperature dependence of the Cs 0-0 ground state hyperfine resonance frequency in a single Neon (Ne) buffer gas vapour microcell. The inversion temperature, expected to be theoretically independent of the buffer gas pressure, is measured to be about 80-C for two different samples. A proposal to develop chip scale atomic clocks with improved long-term frequency stability, simpler configuration (a single buffer gas instead of a buffer gas mixture) and then relaxed constraints on pressure accuracy during the cell filling procedure is presented.

Published in:

Electronics Letters  (Volume:46 ,  Issue: 15 )