Experimental investigations of the Zeeman effect of new fine structure levels of Lanthanum and Praseodymium

Werbowy, S.; Güney, C.; Windholz, Laurentius

doi:10.1016/j.sab.2015.11.003

Cited by 17 publications

(5 citation statements)

References 17 publications

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“…Thus only a limited number of transitions can be studied. Recently, we have demonstrated [23,24] an alternative experimental method (use of a of liquid nitrogen cooled hollow cathode discharge lamp with selective optogalvanic and fluorescence laser spectroscopy) to perform similar Zeeman effect studies of the rare earth element atoms (lanthanum and praseodymium), characterized also by very dense spectra. Although this method is Doppler-limited it can give access to a much higher number of levels to be excited.…”

Section: Discussionmentioning

confidence: 99%

“…We have used a software developed in our group (for details see [15]), which proved its usefulness for many elements, e.g. Antimony [16,17], Lead [18], Bismuth [19][20][21], Lanthanum and Praseodymium [23,24]. In case of the Nd isotopes with hyperfine structure, 143 and 145, in simulations we have used the most recent hyperfine constants reported by [5,6,8].…”

Section: Experiments and Computer Analysismentioning

confidence: 99%

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Studies of Landé gJ-factors of singly ionized neodymium isotopes (142, 143 and 145) at relatively small magnetic fields up to 334 G by collinear laser ion beam spectroscopy

Werbowy

Windholz

2017

Eur. Phys. J. D

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Abstract. The Zeeman splitting at moderate magnetic fields (up to 334 G) of 20 lines of Nd II, covering the part 569.89 nm to 617.05 nm of the visible spectral range were investigated. We used a Doppler-free collinear laser ion beam spectroscopy technique supported by a precise computer analysis. From the Zeeman effect studies we re-investigated the Landé gJ factors for 20 odd levels between 22 850 and 30 002 cm and 11 even levels lying between 6005 and 12 460 cm −1 . We compared our data with other available experimental and theoretical values. We achieved an accuracy better than that of other authors, making our data valuable for future theoretical parametric studies.

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Section: Discussionmentioning

confidence: 99%

Section: Experiments and Computer Analysismentioning

confidence: 99%

Studies of Landé gJ-factors of singly ionized neodymium isotopes (142, 143 and 145) at relatively small magnetic fields up to 334 G by collinear laser ion beam spectroscopy

Werbowy

Windholz

2017

Eur. Phys. J. D

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“…Recently, the hf patterns of some selected lines of Pr and La were investigated with laser spectroscopy in presence of a magnetic field, using again a hollow cathode discharge as a source of free atoms. This gives the possibility to determine the Landé g J -factor of the involved levels, which are especially important for the interpretation of the electronic coupling scheme [21].…”

Section: Discussionmentioning

confidence: 99%

Finding of previously unknown energy levels using Fourier-transform and laser spectroscopy

Windholz

2016

Phys. Scr.

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In this paper several possibilities of how to find previously unknown energy levels from highresolution Fourier-transform or laser-generated spectra are discussed. As examples we use levels of neutral Ta, Pr and La. The following methods are used: analysis of Fourier-transform emission spectra, laser-excitation of unclassified spectral lines, analysis of the hyperfine structure of unclassified lines. The discovery of two new La I energy levels is reported.

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“…These data cited in [7] have been obtained by Camus and Fred at Argonne National Laboratory by the use of a Paschen-Runge spectrograph. Additionally, a study of the Zeeman structure of 6 lines in the wavelength range of 649.572-669.351 nm conducted in 2016 was described in [16].…”

Section: Introductionmentioning

confidence: 99%

Laser spectroscopy of magnetic splitting of Pr I levels in the presence of saturation effects

Sobolewski,

Windholz,

Kwela

2024

Eur. Phys. J. D

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Laser spectroscopy is a very precise tool in determining atomic structure data. However, in the case of complex spectra, when the individual components of the spectra cannot be separated, precise analysis is hindered by the appearing saturation effect. Sometimes this effect is so large that the spectrum simulation does not provide precise results. In the present work, we present the analysis of the Zeeman spectra of seven praseodymium lines in the range of 566–652 nm, which were recorded using the LIF technique in the presence of the saturation effect. To analyze these spectra, we used a specially dedicated computer program, which allowed for very accurate matching of the simulated spectrum to the recorded experimental shape. As a result of the conducted research, we determined 14 Lande factor values, 3 of which are new. Graphic Abstract

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Experimental investigations of the Zeeman effect of new fine structure levels of Lanthanum and Praseodymium

Cited by 17 publications

References 17 publications

Studies of Landé gJ-factors of singly ionized neodymium isotopes (142, 143 and 145) at relatively small magnetic fields up to 334 G by collinear laser ion beam spectroscopy

Studies of Landé gJ-factors of singly ionized neodymium isotopes (142, 143 and 145) at relatively small magnetic fields up to 334 G by collinear laser ion beam spectroscopy

Finding of previously unknown energy levels using Fourier-transform and laser spectroscopy

Laser spectroscopy of magnetic splitting of Pr I levels in the presence of saturation effects

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