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arXiv · 1703.02717

Frequency measurement of the clock transition of an indium ion sympathetically-cooled in a linear trap

Nozomi Ohtsubo·Ying Li·Kensuke Matsubara·Tetsuya Ido·Kazuhiro Hayasaka
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Abstract

We report frequency measurement of the clock transition in an 115In+ ion sympathetically-cooled with Ca+ ions in a linear rf trap. The Ca+ ions are used as a probe of the external electromagnetic field and as the coolant for preparing the cold In+. The frequency is determined to be 1 267 402 452 901 049.9 (6.9) Hz by averaging 36 measurements using an optical frequency comb referenced to the frequency standards located in the same site.

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Nozomi Ohtsubo, Ying Li, Kensuke Matsubara, Tetsuya Ido, Kazuhiro Hayasaka. 2017-03-08. Frequency measurement of the clock transition of an indium ion sympathetically-cooled in a linear trap. https://doi.org/10.1364/oe.25.011725

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