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Alkali metal condensation zones in MEMS alkali vapor cells and characterization in CPT clock
We fabricated MEMS vapor cells gold microdiscs, allowing the condensation of alkali metal on preferred locations without the use of a thermal gradient. Reduction of light-shift induced long-term frequency instability in CPT clock is reported. (C) 2019 The Author(s)

Authors: S. Karlen, T. Overstolz, J. Gobet, J. Haesler, F. Droz, S. Lecomte, et al.

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