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dc.contributor.authorKarlen, Sylvain
dc.contributor.authorOverstolz, Thomas
dc.contributor.authorGobet, Jean
dc.contributor.authorHaesler, Jacques
dc.contributor.authorDroz, Fabien
dc.contributor.authorLecomte, Steve
dc.identifier.citation2018 European Frequency and Time Forum (EFTF), Turin (Italy), pp. 91-93
dc.description.abstractOne of the main source of long-term frequency instabilities in MEMS cell clocks is the light-shift induced by optical intensity changes which can be caused by the presence of condensed alkali droplets within the light-path of the interrogation laser. We report here on the use of patent pending gold micro-discs as alkali preferential condensation spots in order to concentrate the alkali droplets outside of the laser light-path. Evidenced of preferential condensation of Rb on Au micro-discs is reported and the effect on the long-term frequency stability of a CPT clock setup are assessed.
dc.titleGold microdiscs as alkali preferential condensation spots for cell clock long-term frequency improvement
dc.typeProceedings Article
dc.type.csemresearchareasScientific Instrumentation

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