The stark effect in the 6snf Rydberg series of barium

Ewiss, M. A. Zaki; Hogervorst, W.; Vassen, W.; Post, B.

doi:10.1007/bf01411885

Cited by 11 publications

(5 citation statements)

References 12 publications

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“…Gallagher et al [10] also observe the 6s24g3G4 level. The results, details of which will be published elsewhere [13], give a nearly constant quantum defect #(1G4)=0.055 (1) in good agreement with Gallagher's value [9], but slightly lower than Armstrong's results [8]. It is possible that at least part of the signal of the 6s24g 1G 4 level observed by Gallagher et al [10] is due to the 5d7d 1D 2 perturber of the 6snd 1, 3D2 series [3].…”

Section: D) Analysis Of the Contributions Of The 6sng 1"3g 4 Seriessupporting

confidence: 73%

“…A similar spectrum for the excitation to the 6s31f 3F 3 levels is shown in Fig. 1 are denoted by isotope mass number and absolute value of (13) All polarizabilities in MHz/(V/cm) 2 a Calculated with MQDT results of Aymar and Camus [9] b Calculated with MQDT results of Aymar [3] for 5d7d 1D 2 perturber of 6snd 1'3D 2 series The perturbation of the 6snf 1F 3 series by the 5d8p aF 3 level 1-2] results in a quantum defect close to zero for n>28. This paper also contains a brief description of the experimental setup.…”

Section: Resultsmentioning

confidence: 99%

“…2b of paper I. The observations of the angular momentum manifolds [12] in the linear Stark regime will be discussed elsewhere [13]. The singlet-triplet mixing of the odd-parity d = 3 levels [2,4] is responsible for the fairly strong tF3-signals, although excited from the metastable 3D 2 level.…”

Section: Resultsmentioning

confidence: 99%

“…It is possible that at least part of the signal of the 6s24g 1G 4 level observed by Gallagher et al [10] is due to the 5d7d 1D 2 perturber of the 6snd 1, 3D2 series [3]. In this way level energies for the 6sng 3G,, series with n=28-40 have been determined, resulting in a quantum defect /~(3G4)=0.052 (1) [13]. 2 the perturbation of the 6snflF3 series by the 5d8p 1F 3 level [2] results for n>28 in a near degeneracy of the 1F 3 levels with levels with orbital angular momentum L>3.…”

Section: D) Analysis Of the Contributions Of The 6sng 1"3g 4 Seriesmentioning

confidence: 99%

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The Stark effect in the 6snf Rydberg series of barium

et al. 1985

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The Stark effect has been studied in the odd-parity 6snf t, 3F3 Rydberg series of barium with high-resolution laser-atomic-beam spectroscopy. Scalar and tensor polarizabilities have been measured of 6snf 1F 3 levels with n=ll-30 and of 6snf 3F 3 levels with n = 12-40. The contributions of the adjacent even-parity Rydberg levels to these polarizabilities have been calculated as far as data are available. This results in important additional information on the only partly known 6sng 1'3G 4 series and confirms the perturbation of these series at n=24 by a 5d7dJ=4 level. A tentative three-channel quantum-defect-theory analysis of the 1,3G4 series has been performed. It is shown that reported level energies of the 6snd 1, 3D2 series are systematically 0.14 cm-1 too high. Level energies of the t,3F3 series have been determined by Post et al. [2], who analyzed their data in the framework of Multichannel Quantum Defect Theory (MQDT) (see e.g. Ref. 3). These series turn, out to be perturbed by levels of the 5d8p configuration. Combination of the MQDT analysis of the level energies of the J=3 series with the accurate measurements of hyperfine structure and isotope shifts in the 6snf Rydberg series by Post et al. [4] results in reliable information on the wave functions of the 1,3F3 series in terms of single-triplet mixing and admixture of perturber character. Level energies of the 1,3D2 series measured by Aymar et al. [51 and of the 3D 3 series (Camus et al., Ref. 6), together with their MQDT analyses [3, 7]are available. The 6snd series are perturbed by levels of the 5d7d configuration in the energy region of interest. These perturbers are expected to affect the 6sng series as well. Camus et al. [6] give level energies for the 6sng 1'3G series, but are unable to resolve singlet and triplet levels except for some levels of the 3G3, 3G 4 and 3G 5 series in the vicinity of these 5d7d perturbers. Tentative MQDT analyses of these results on the 6sng Rydberg series have been published by Aymar and Camus [7], who included

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Section: D) Analysis Of the Contributions Of The 6sng 1"3g 4 Seriessupporting

confidence: 73%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: D) Analysis Of the Contributions Of The 6sng 1"3g 4 Seriesmentioning

confidence: 99%

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The Stark effect in the 6snf Rydberg series of barium

et al. 1985

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“…In that paper an overview of measurements performed earlier is also given. Later on, the experiments have been extended to highly excited Rydberg levels of the 6snf series by the same group [2][3][4]. The splitting of Ba I levels by electric fields has been observed by Kulina and Rinkleff [5].…”

Section: Introductionmentioning

confidence: 94%

Stark- and Zeeman-effect of resonance lines of Ba I

Schuh

Neureiter

Jäger

et al. 1996

Z Phys D - Atoms, Molecules and Clusters

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Laserspectroscopic investigations were performed on a collimated atomic beam of barium (natural isotope abundance). The metastable ground levels (D and D ) of the investigated lines were populated by a discharge burning in barium vapour directly in front of the oven hole. We could investigate 14 spectral lines between 580 and 690 nm. The tensor polarizabilities of the upper and the lower level as well as the differences in the scalar polarizabilities could be determined. Spectra in magnetic fields up to 0.03 Tesla showed no deviation from the pattern resulting from a simple Russell-Sounders coupling.

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Laser Spectroscopy

Svanberg¹

2004

Atomic and Molecular Spectroscopy

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The stark effect in the 6snf Rydberg series of barium

Cited by 11 publications

References 12 publications

The Stark effect in the 6snf Rydberg series of barium

The Stark effect in the 6snf Rydberg series of barium

Stark- and Zeeman-effect of resonance lines of Ba I

Laser Spectroscopy

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