S
Stéphane Guérandel
Researcher at Centre national de la recherche scientifique
Publications - 76
Citations - 1241
Stéphane Guérandel is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Atomic clock & Population. The author has an hindex of 18, co-authored 74 publications receiving 1158 citations. Previous affiliations of Stéphane Guérandel include Pierre-and-Marie-Curie University & University of Paris.
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High contrast Ramsey fringes with coherent-population-trapping pulses in a double lambda atomic system.
TL;DR: The observation of Raman-Ramsey fringes is reported using a double lambda scheme creating coherent population trapping in an atomic ensemble combined with pulsed optical radiations, creating higher contrast than the usual simple lambda scheme.
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Vapour microcell for chip scale atomic frequency standard
A. Douahi,L. Nieradko,Jean-Charles Beugnot,Jan Dziuban,H. Maillote,Stéphane Guérandel,Marco Moraja,Christophe Gorecki,Vincent Giordano +8 more
TL;DR: In this article, the original implementation of a microcell in which a stable cesium vapour is generated after the cell is sealed is described. But this microcell is suitable for chip scale atomic clocks (CSACs) and can be realized at the industrial scale in an economic way.
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Investigations on continuous and pulsed interrogation for a CPT atomic clock
TL;DR: The pulsed interrogation technique reduces the light shift by a factor of 300 and allowed it to reach high-frequency stability for higher laser intensities and main noise contributions limiting the short-term and medium-term frequency stability are estimated.
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Coherent-population-trapping resonances in buffer-gas-filled Cs-vapor cells with push-pull optical pumping
Xiaochi Liu,Jean-Marc Merolla,Stéphane Guérandel,Christophe Gorecki,Emeric de Clercq,Rodolphe Boudot +5 more
TL;DR: In this paper, a theoretical study and experimental characterization of coherent-population-trapping (CPT) resonances in buffer-gas-filled vapor cells with push-pull optical pumping (PPOP) on Cs ${D}_{1}$ line is presented.
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High-stability compact atomic clock based on isotropic laser cooling
TL;DR: In this paper, the authors present a compact cold-atom clock configuration where isotropic laser cooling, microwave interrogation, and clock signal detection are successively performed inside a spherical microwave cavity.