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Conference Papers Year : 2021

From atomic fountains to ultra-stable lasers

A. Ferrier


The SI second is currently defined through the ground-state hyperfine transition frequency of the cesium atom. We discuss the calibration of international time scales using one of the primary frequency standards at LNE-SYRTE. However, the future of time and frequency metrology lies in the optical domain. We describe our ongoing research on laser spectroscopy for ultra-stable lasers which will eventually enable the ultimate performance in optical clocks.
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obspm-03986770 , version 1 (13-02-2023)



B. Fang, H. Le Goff, B. Chupin, L. Lorini, M. Abgrall, et al.. From atomic fountains to ultra-stable lasers. New Frontiers for Metrology: From Biology and Chemistry to Quantum and Data Science, Jul 2019, Varenna, Italy. pp.401-408, ⟨10.3254/ENFI210039⟩. ⟨obspm-03986770⟩
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