| DOI | Resolve DOI: https://doi.org/10.1109/CPEM.2012.6250904 |
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| Author | Search for: Madej, A. A.1; Search for: Dubé, P.1; Search for: Zhou, Z.1; Search for: Bernard, J. E.1 |
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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 | 2012 Conference on Precision Electromagnetic Measurements (CPEM 2012), July 1-6, 2012, Washington, DC, USA |
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| Subject | Clocks; frequency control; ions; lasers; precision mesurements; spectroscopy; start effect; strontium |
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| Abstract | We describe receent progress in the establishment of a versatile and reliable optical frequency standard whose performance in evaluated accuracy and stability exceeds that of the current realization of the SI second. The 445-THz reference transition in a single, trapped, and laser cooled ion of 88Sr⁺ suspended using a miniature RF endcap trap system in the new trap have been reduced to the 2 x 10⁻¹⁷ level for each of the scalar Stak shifts and the time dilation shifts. Studies indicate that such shifts remain stable over several hours. An identical trap system was constructed to evaluate the electrode heating effects of the shift will be limited by the current knowledge of the scalar polarizabilities of the upper and lower states of the reference transition, currently at the 2 x 10⁻¹⁷ level. |
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| Publication date | 2012-07-06 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21270478 |
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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 | b3acf826-ade8-4b35-bba7-45661713048b |
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| Record created | 2014-02-13 |
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| Record modified | 2020-04-21 |
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