| Download | - View accepted manuscript: Absolute frequency measurement of the electric quadrupole transition of 88Sr+ (PDF, 1.4 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1109/FCS.2017.8089042 |
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| Author | Search for: Dubé, Pierre1; Search for: Bernard, John E.1; Search for: Gertsvol, Marina1 |
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| Affiliation | - National Research Council of Canada. Measurement Science and Standards
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| Format | Text, Article |
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| Conference | 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS), 9-13 July 2017, Besancon, France |
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| Subject | absolute frequency measurement; single ion clock; optical atomic clock; GPS frequency link |
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| Abstract | We report a new measurement of the 445 THz electric quadrupole transition of the strontium ion made using a GPS link to the SI second. Compared to our previous measurement reported in 2012, the operation of the optical clock has been improved in several ways, especially from a reduction of the micromotion shifts, of the black body radiation shift, and of the servo tracking errors. Moreover, the stability of the clock has been improved three-fold with state-preparation. The uncertainty of the optical clock during the measurement campaign was 7 mHz. The uncertainty of the frequency measurement was 0.75 Hz, limited primarily by the GPS link and to a lesser extent by the measurement statistics. The new frequency measurement is in good agreement with previously reported values. |
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| Publication date | 2017-10 |
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| Publisher | IEEE |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRC-MSS-1036 |
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| NPARC number | 23002709 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 53bf398f-4a6c-4780-b64c-3cfed5e72178 |
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| Record created | 2018-01-18 |
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| Record modified | 2020-06-04 |
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