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Isotope shifts and hyperfine splitting of the ${}^{1}S_{0} \to {}^{3}P_{1}$ transition in zinc

Felix Waldherr ^*, Lukas Möller, and Simon Stellmer

University of Bonn, Nussallee 12, 53115 Bonn, Germany

^*Contact author: fwaldher@uni-bonn.de

Phys. Rev. A 114, 022807 – Published 10 August, 2026

DOI: https://doi.org/10.1103/51f6-894b

Abstract

We report laser-induced-fluorescence spectroscopy of the ${}^{1}S_{0} \to {}^{3}P_{1}$ intercombination transition in neutral zinc at $307.6 nm$ . Isotope shifts are measured for all stable isotopes with kHz-level precision, improving previous data by about two orders of magnitude. For ${}^{67}{Zn}$ , we resolve the excited-state hyperfine structure and determine $δ ν_{COG}^{67, 64} = 1085.933 (7) MHz, A = 608.922 (3) MHz$ , and $B = - 18.995 (10) MHz$ . A King plot comparison with the ${}^{1}S_{0} \to {}^{1}P_{1}$ 214-nm transition results in field- and mass-shift parameters of $F_{307.6, 214} = 1.17 (5)$ and $K_{307.6, 214} = - 153 (60) GHz u$ . These results provide the spectroscopic basis for narrow-line cooling and precision measurements based on zinc, including the development of an optical clock.

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References (16)

M. Witkowski, G. Kowzan, R. Munoz-Rodriguez, R. Ciuryło, P. S. Żuchowski, P. Masłowski, and M. Zawada, Absolute frequency and isotope shift measurements of mercury ${}^{1}S_{0} \to {}^{3}P_{1}$ transition, Opt. Express 27, 11069 (2019).
M. Gu, K. Koenigsmann, J. Yang, and P. Schauss, Modulation transfer spectroscopy and isotope shifts of the ${}^{1}S_{0} \to {}^{3}P_{1}$ transition of ytterbium, Phys. Rev. A 112, 062807 (2025).
H. Miyake, N. C. Pisenti, P. K. Elgee, A. Sitaram, and G. K. Campbell, Isotope-shift spectroscopy of the ${}^{1}S_{0} \to {}^{3}P_{1}$ and ${}^{1}S_{0} \to {}^{3}P_{0}$ transitions in strontium, Phys. Rev. Res. 1, 033113 (2019).
M. G. Tarallo, T. Mazzoni, N. Poli, D. V. Sutyrin, X. Zhang, and G. M. Tino, Test of Einstein equivalence principle for 0-spin and half-integer-spin atoms: Search for spin-gravity coupling effects, Phys. Rev. Lett. 113, 023005 (2014).
A. Aeppli, K. Kim, W. Warfield, M. S. Safronova, and J. Ye, Clock with $8 \times 10^{- 19}$ systematic uncertainty, Phys. Rev. Lett. 133, 023401 (2024).
D. Röser, J. E. Padilla-Castillo, B. Ohayon, R. Thomas, S. Truppe, G. Meijer, S. Stellmer, and S. C. Wright, Hyperfine structure and isotope shifts of the $(4 s^{2}) {}^{1}S_{0} \to (4 s 4 p) {}^{1}P_{1}$ transition in atomic zinc, Phys. Rev. A 109, 012806 (2024).
L. Möller and S. Stellmer, Magneto-optical trapping of zinc, arXiv:2510.21376.
R. W. P. Drever, J. L. Hall, F. V. Kowalski, J. Hough, G. M. Ford, A. J. Munley, and H. Ward, Laser phase and frequency stabilization using an optical resonator, Appl. Phys. B 31, 97 (1983).
Y. Colombe, D. H. Slichter, A. C. Wilson, D. Leibfried, and D. J. Wineland, Single-mode optical fiber for high-power, low-loss UV transmission, Opt. Express 22, 19783 (2014).
K. J. R. Rosman and P. D. P. Taylor, Isotopic compositions of the elements 1997, Pure Appl. Chem. 70, 217 (1998).
R. C. Brown, S. Wu, J. V. Porto, C. J. Sansonetti, C. E. Simien, S. M. Brewer, J. N. Tan, and J. D. Gillaspy, Quantum interference and light polarization effects in unresolvable atomic lines: Application to a precise measurement of the ${}^{6, 7}{Li} D_{2}$ lines, Phys. Rev. A 87, 032504 (2013).
F. W. Byron, M. N. McDermott, R. Novick, B. W. Perry, and E. B. Saloman, Spin and nuclear moments of 245-day ${}^{65}{Zn}$ ; redetermination of the hfs of ${}^{67}{Zn}$ and $τ ({}^{3}P_{1})$ of zinc, Phys. Rev. 134, A47 (1964).
P. Campbell, J. Billowes, and I. S. Grant, The specific mass shift of the zinc atomic ground state, J. Phys. B: At. Mol. Opt. Phys. 30, 2351 (1997).
B. K. Sahoo and B. Ohayon, All-optical differential radii in zinc, Phys. Rev. Res. 5, 043142 (2023).
J. Bieroń, L. Filippin, G. Gaigalas, M. Godefroid, P. Jönsson, and P. Pyykkö, Ab initio calculations of the hyperfine structure of zinc and evaluation of the nuclear quadrupole moment $Q ({}^{67}{Zn})$ , Phys. Rev. A 97, 062505 (2018).
L. Filippin, J. Bieroń, G. Gaigalas, M. Godefroid, and P. Jönsson, Multiconfiguration calculations of electronic isotope-shift factors in Zn I, Phys. Rev. A 96, 042502 (2017).

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Isotope shifts and hyperfine splitting of the ${}^{1}S_{0} \to {}^{3}P_{1}$ transition in zinc

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Isotope shifts and hyperfine splitting of the S01→P13 transition in zinc

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Isotope shifts and hyperfine splitting of the ${}^{1}S_{0} \to {}^{3}P_{1}$ transition in zinc