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arXiv:1609.00479 · Physical Review A

Observation of the 1S0 to 3D1 clock transition in 175Lu+

K. J. Arnold, R. Kaewuam, Atish Roy, Eduardo Javier Paez, Sin-Jhang Wang, M. D. Barrett

Published Nov 29, 2016• 13 citations
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Abstract

We report direct laser spectroscopy of the ${}^{1}{S}_{0}$ to ${}^{3}{D}_{1}$ highly-forbidden M1 clock transition in ${}^{175}{\mathrm{Lu}}^{+}$. Clock operation is demonstrated on three pairs of Zeeman transitions, one pair from each hyperfine manifold of the ${}^{3}{D}_{1}$ term. We measure the hyperfine intervals of the ${}^{3}{D}_{1}$ to 10 ppb uncertainty and infer the optical frequency averaged over the three hyperfine transitions to be $353.639\phantom{\rule{0.16em}{0ex}}915\phantom{\rule{0.16em}{0ex}}952\phantom{\rule{0.16em}{0ex}}2\phantom{\rule{0.16em}{0ex}}(6)$ THz. The lifetime of the ${}^{3}{D}_{1}$ state is inferred to be ${174}_{\ensuremath{-}32}^{+23}$ hours from the M1 coupling strength.

DOI
10.1103/physreva.94.052512

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