495 citations · 2.7k across the 43 of their papers we have counts for
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Measurement and control of the interaction frequency shift in bosonic optical lattice clocks
J. P. Salvatierra, M. Barbiero, G. Bertaina +3
We report precise measurements of inter-level interactions in a bosonic optical lattice clock based on Sr atoms. We observe a nonlinear density dependence of the clock shift…
International Optical Clock Comparison Using the European Optical Fiber Network
Marco Pizzocaro, Clara Zyskind, Anne Amy-Klein +41
Optical clocks have achieved remarkable estimated fractional frequency uncertainties reaching the level and below, enabling applications in fundamental physics, general…
Roadmap towards the redefinition of the second
N. Dimarcq, M. Gertsvolf, G. Mileti +34
This paper outlines the roadmap towards the redefinition of the second, which was recently updated by the CCTF Task Force created by the CCTF in 2020. The main achievements and the…
Absolute frequency measurement of a Yb optical clock at the limit of the Cs fountain
Irene Goti, Stefano Condio, Cecilia Clivati +6
We present the new absolute frequency measurement of ytterbium (171Yb) obtained at INRiM with the optical lattice clock IT-Yb1 against the cryogenic caesium (133Cs) fountain IT-CsF…
Optically loaded Strontium lattice clock with a single multi-wavelength reference cavity
Matteo Barbiero, Davide Calonico, Filippo Levi +1
We report on the realization of a new compact strontium optical clock using a 2-D magneto-optical-trap (2D-MOT) as cold atomic source and a multi-wavelength cavity as the frequency…
A Sideband-Enhanced Cold Atomic Source For Optical Clocks
Matteo Barbiero, Marco G. Tarallo, Davide Calonico +3
We demonstrate the enhancement and optimization of a cold strontium atomic beam from a two-dimensional magneto-optical trap (2D-MOT) transversely loaded from a collimated atomic be…
Geodesy and metrology with a transportable optical clock
Jacopo Grotti, Silvio Koller, Stefan Vogt +21
The advent of novel measurement instrumentation can lead to paradigm shifts in scientific research. Optical atomic clocks, due to their unprecedented stability and uncertainty, are…
Measuring molecular frequencies in the 1--10 μm range at 11-digits accuracy
G. Insero, S. Borri, D. Calonico +7
Mid infrared (MIR) photonics is a key region for molecular physics [1]. High-resolution spectroscopy in the 1--10 μm region, though, has never been fully tackled for the lack of wi…
Absolute frequency measurement of the 1S0 - 3P0 transition of 171Yb
Marco Pizzocaro, Pierre Thoumany, Benjamin Rauf +6
We report the absolute frequency measurement of the unperturbed transition 1S0 - 3P0 at 578 nm in 171Yb realized in an optical lattice frequency standard. The absolute frequency is…
Black Body Radiation Shift of the 133Cs Hyperfine Transition Frequency
S. Micalizio, A. Godone, D. Calonico +2
We report the theoretical evaluations of the static scalar polarizability of the 133Cs ground state and of the black body radiation shift induced on the transition frequency betwee…
Measurement of the Blackbody Radiation Shift of the 133Cs Hyperfine Transition in an Atomic Fountain
F. Levi, D. Calonico, L. Lorini +2
We used a Cs atomic fountain frequency standard to measure the Stark shift on the ground state hyperfine transiton frequency in cesium (9.2 GHz) due to the electric field generated…
A Search for Variations of Fundamental Constants using Atomic Fountain Clocks
H. Marion, F. Pereira Dos Santos, M. Abgrall +12
Over five years we have compared the hyperfine frequencies of 133Cs and 87Rb atoms in their electronic ground state using several laser cooled 133Cs and 87Rb atomic fountains with…
133Cs87Rb Laser Cooled Dual Fountain
D. Calonico, Y. Sortais, S. Bize +5
At BNM-SYRTE laboratories in Paris two 133Cs fountains and a 87Rb one have been already demonstrated. This paper illustrates the construction of a 87Rb and Cs dual fountain realize…