Zeeman structure of red lines of lanthanum observed by laser spectroscopy methods

Ł.M. Sobolewski, L. Windholz, J. Kwela

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Laser Induced Fluorescence (LIF) Spectroscopy and Optogalvanic (OG) Spectroscopy were used for the investigation of the Zeeman hyperfine (hf) structures of 27 spectral lines of La I in the wavelength range between 633.86 and 667.54 nm. As a source of free La atoms a hollow cathode discharge lamp was used. Spectra were recorded in the presence of a relatively weak magnetic field (about 800G) produced by a permanent magnet, for two linear polarization directions of the exciting laser beam. As a result of the measurements, we determined for the first time the Landé gJ- factors of 18 levels of La I. The Landé gJ- factors of 12 other levels were re-investigated and determined with higher accuracy.
Original languageEnglish
Pages (from-to)180-183
Number of pages4
JournalJournal of quantitative spectroscopy & radiative transfer
Volume201
DOIs
Publication statusPublished - 2017

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  • Sonstiges

Cite this

Zeeman structure of red lines of lanthanum observed by laser spectroscopy methods. / Sobolewski, Ł.M.; Windholz, L.; Kwela, J.

In: Journal of quantitative spectroscopy & radiative transfer, Vol. 201, 2017, p. 180-183.

Research output: Contribution to journalArticleResearchpeer-review

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abstract = "Laser Induced Fluorescence (LIF) Spectroscopy and Optogalvanic (OG) Spectroscopy were used for the investigation of the Zeeman hyperfine (hf) structures of 27 spectral lines of La I in the wavelength range between 633.86 and 667.54 nm. As a source of free La atoms a hollow cathode discharge lamp was used. Spectra were recorded in the presence of a relatively weak magnetic field (about 800G) produced by a permanent magnet, for two linear polarization directions of the exciting laser beam. As a result of the measurements, we determined for the first time the Land{\'e} gJ- factors of 18 levels of La I. The Land{\'e} gJ- factors of 12 other levels were re-investigated and determined with higher accuracy.",
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AU - Sobolewski, Ł.M.

AU - Windholz, L.

AU - Kwela, J.

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N2 - Laser Induced Fluorescence (LIF) Spectroscopy and Optogalvanic (OG) Spectroscopy were used for the investigation of the Zeeman hyperfine (hf) structures of 27 spectral lines of La I in the wavelength range between 633.86 and 667.54 nm. As a source of free La atoms a hollow cathode discharge lamp was used. Spectra were recorded in the presence of a relatively weak magnetic field (about 800G) produced by a permanent magnet, for two linear polarization directions of the exciting laser beam. As a result of the measurements, we determined for the first time the Landé gJ- factors of 18 levels of La I. The Landé gJ- factors of 12 other levels were re-investigated and determined with higher accuracy.

AB - Laser Induced Fluorescence (LIF) Spectroscopy and Optogalvanic (OG) Spectroscopy were used for the investigation of the Zeeman hyperfine (hf) structures of 27 spectral lines of La I in the wavelength range between 633.86 and 667.54 nm. As a source of free La atoms a hollow cathode discharge lamp was used. Spectra were recorded in the presence of a relatively weak magnetic field (about 800G) produced by a permanent magnet, for two linear polarization directions of the exciting laser beam. As a result of the measurements, we determined for the first time the Landé gJ- factors of 18 levels of La I. The Landé gJ- factors of 12 other levels were re-investigated and determined with higher accuracy.

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