Progress in the evaluation and operation of the NRC strontium single ion frequency standard as an optical atomic clock

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DOIResolve DOI: http://doi.org/10.1109/CPEM.2010.5544362
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TypeArticle
Proceedings title2010 Conference on Precision Electromagnetic Measurements (CPEM 2010)
Series titleCPEM Digest
ConferenceConference on Precision Electromagnetic Measurements 2010 (CPEM 2010), June 13-18, 2010, Daejeon, Korea
ISSN0589-1485
ISBN978-1-4244-6795-2
Pages8081; # of pages: 2
AbstractImproved functionality and accuracy of the NRC Sr⁺ single trapped ion 445-THz standard is described. Absolute frequency stabilization of all laser sources has been achieved together with loading of the ion trap using photo-ionization methods. An Erbium fiber laser based frequency comb is used to directly measure the 445-THz clock frequency. A 9 hr preliminary measurement was performed with statistical uncertainty of 1.4 Hz (3×10⁻¹⁵) in excellent agreement with a previously reported value in 2005. A new endcap trap with probing and micromotion correction in three dimensions has been assembled and will have uncertainties approaching 10⁻¹⁷ in the near future.
Publication date
PublisherIEEE
LanguageEnglish
AffiliationNRC Institute for National Measurement Standards; National Research Council Canada
Peer reviewedYes
NPARC number21269067
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Record identifiera5fde864-722b-40e8-88a3-d035137a27b4
Record created2013-12-04
Record modified2016-05-09
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