Absolute frequency measurement of the 171Yb optical lattice clock at INRIM

Absolute frequency measurement of the 171Yb optical lattice clock at INRIM

We present the absolute frequency measurement of the transition 1 S 0 - 3 P 0 at 578 nm in ytterbium 171 realized in an optical lattice frequency standard relative to the cryogenic caesium fountain ITCsF2. The measurement result is 518 295 836 590 863.59(31) Hz with a relative standard uncertainty o...

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Bibliographic Details
Published in:2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS) pp. 813 - 814
Main Authors: Pizzocaro, Marco, Thoumany, Pierre, Bregolin, Filippo, Milani, Gianmaria, Rauf, Benjamin, Del Carmen Velez Lopez, Maria, Clivati, Cecilia, Costanzo, Giovanni A., Levi, Filippo, Calonico, Davide
Format: Conference Proceeding
Language:English
Published: IEEE 01-07-2017
Subjects:
Clocks
Frequency measurement
Lattices
Optical variables measurement
Uncertainty
Ytterbium
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Summary:We present the absolute frequency measurement of the transition 1 S 0 - 3 P 0 at 578 nm in ytterbium 171 realized in an optical lattice frequency standard relative to the cryogenic caesium fountain ITCsF2. The measurement result is 518 295 836 590 863.59(31) Hz with a relative standard uncertainty of 5.9 × 10 -16 . A contribution of 1.6 × 10 -16 is coming from the ytterbium clock and we are working to reduce this contribution to the 1 × 10 -17 level.
ISSN:2327-1949
DOI:10.1109/FCS.2017.8089043