Hyperfine structure of 4ƒ^N 6s^2 configurations in ^159Tb, ^161,163Dy, and ^169Tm

Childs, W. J.; Crosswhite, H. M.; Goodman, L. S.; Pfeufer, V.

doi:10.1364/josab.1.000022

Cited by 35 publications

(18 citation statements)

References 18 publications

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“…There is no previous hfs data for these levels for comparison, but the very large magnitude of the electric quadrupole constants is consistent with measurements in Dy I [32]. Comparison with hfs measurements in isoelectronic 159 Tb I is not useful as the electron configurations of the levels studied [33] are different from those in the present work, and also because the magnetic dipole and electric quadrupole moments are quite different from those of 161 Dy and 163 Dy.…”

Section: Discussionsupporting

confidence: 49%

Hyperfine Structure and Isotope Shifts in Dy II

Papa

Holt

Rosner

2017

Atoms

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Using fast-ion-beam laser-fluorescence spectroscopy (FIBLAS), we have measured the hyperfine structure (hfs) of 14 levels and an additional four transitions in Dy II and the isotope shifts (IS) of 12 transitions in the wavelength range of 422-460 nm. These are the first precision measurements of this kind in Dy II. Along with hfs and IS, new undocumented transitions were discovered within 3 GHz of the targeted transitions. These atomic data are essential for astrophysical studies of chemical abundances, allowing correction for saturation and the effects of blended lines. Lanthanide abundances are important in diffusion modeling of stellar interiors, and in the mechanisms and history of nucleosynthesis in the universe. Hfs and IS also play an important role in the classification of energy levels, and provide a benchmark for theoretical atomic structure calculations.

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Section: Discussionsupporting

confidence: 49%

Hyperfine Structure and Isotope Shifts in Dy II

Papa

Holt

Rosner

2017

Atoms

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“…Experimental and recalculated A values are presented in Table 4. The resulting dipole oneks k~ electron hfs parameters a,~ 1 are collected in Table 5 [41 [5] [6t [71…”

Section: Hyperfine Structurementioning

confidence: 99%

“…For the element Tm, a parametric hfs analysis has been done in the three configurations 4f136s2 [4,5], 4fI36s6p and 4f125d6s 2 [6,7]. Doppler-limited investigations in the configuration regarded here, 4f136s7s, were ah'eady carried out by Bordarier, Vetter and Blaise [8].…”

Section: Introductionmentioning

confidence: 99%

Hyperfine structure in the configuration 4f 136s7s of Tm I

Kronfeldt

Kröger

1995

Z Phys D - Atoms, Molecules and Clusters

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Abstract. Doppler-free saturation absorption spectroscopy was applied on an atomic thulium vapour in a see-through hollow cathode for the determination of precise values for the magnetic dipole hyperfine structure constants A of 6 levels of the configuration 4 f 13 6s7s. A parametric analysis of the hyperfine structure has been performed, using wavefunctions from a fine structure calculation, which leads to one-electron hyperfine structure parameters a °} = -500(6) = 10 -1012 MHz.l0 -5058(47) MHz, and a7s = MHz, a6s

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“…Measurements of the magnetic dipole hyperfine structure constants A for Tm i are numerous [1][2][3][4][5][6][7][8][9][10], but most focused upon the two levels of the electronic ground configuration 4f 13 6s 2 and low lying levels of even parity, which are connected to the ground configuration by electric dipole transitions. Only [1,[8][9][10] have reported hyperfine structure measurements of high lying odd levels.…”

Section: Introductionmentioning

confidence: 99%

High resolution measurements of the hyperfine structure and determination of a new energy level of Tm I

Kröger

Tanriver

Kronfeldt

et al. 1997

Z Phys D - Atoms, Molecules and Clusters

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High resolution laser spectroscopy has been applied to study the hyperfine structure of excited energy levels of Thulium i. As part of our aim to complete the fine and hyperfine structure of the Tm i spectra 51 transitions in the visible were measured and precise values for the magnetic dipole hyperfine structure constants A of 24 odd and 19 even levels were determined. In addition, a new energy level of even parity with J = 3/2 is found at 27 509.40 (5)cm −1 using laser induced fluorescence spectroscopy.

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Hyperfine structure of 4ƒ^N 6s^2 configurations in ^159Tb, ^161,163Dy, and ^169Tm

Cited by 35 publications

References 18 publications

Hyperfine Structure and Isotope Shifts in Dy II

Hyperfine Structure and Isotope Shifts in Dy II

Hyperfine structure in the configuration 4f 136s7s of Tm I

High resolution measurements of the hyperfine structure and determination of a new energy level of Tm I

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