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

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

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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
Publication statusPublished - 2017

Fields of Expertise

  • Sonstiges

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