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Miao K, Zhang JW, Sun XL, et al. High accuracy measurement of the ground-state hyperfine splitting in a ¹¹³Cd⁺ microwave clock. Opt Lett. 2015;40(18):4249-52doi: 10.1364/OL.40.004249.
Miao, K., Zhang, J. W., Sun, X. L., Wang, S. G., Zhang, A. M., Liang, K., & Wang, L. J. (2015). High accuracy measurement of the ground-state hyperfine splitting in a ¹¹³Cd⁺ microwave clock. Optics letters, 40(18), 4249-52. https://doi.org/10.1364/OL.40.004249
Miao, K, et al. "High accuracy measurement of the ground-state hyperfine splitting in a ¹¹³Cd⁺ microwave clock." Optics letters vol. 40,18 (2015): 4249-52. doi: https://doi.org/10.1364/OL.40.004249
Miao K, Zhang JW, Sun XL, Wang SG, Zhang AM, Liang K, Wang LJ. High accuracy measurement of the ground-state hyperfine splitting in a ¹¹³Cd⁺ microwave clock. Opt Lett. 2015 Sep 15;40(18):4249-52. doi: 10.1364/OL.40.004249. PMID: 26371908.
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Opt Lett. 2015 Sep 15;40(18):4249-52. doi: 10.1364/OL.40.004249.

High accuracy measurement of the ground-state hyperfine splitting in a ¹¹³Cd⁺ microwave clock.

Optics letters

K Miao, J W Zhang, X L Sun, S G Wang, A M Zhang, K Liang, L J Wang

PMID: 26371908 DOI: 10.1364/OL.40.004249

Abstract

A microwave frequency standard based on laser-cooled (113)Cd(+) ions has been developed in recent years, and the short-term frequency instability is measured to be 6.1×10(-13)/√τ. By comparing the Cd(+) clock to a superior frequency reference, the ground-state hyperfine splitting of (113)Cd(+) is measured precisely to be 15199862855.0192(10) Hz with a fractional precision of 6.6×10(-14). This result is consistent with previous results, and the measurement precision is improved by nearly one order more than the best result reported before.

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