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.
|Number of pages||4|
|Journal||Journal of Quantitative Spectroscopy & Radiative Transfer|
|Publication status||Published - 2017|
Fields of Expertise
Sobolewski, Ł. M., Windholz, L., & Kwela, J. (2017). Zeeman structure of red lines of lanthanum observed by laser spectroscopy methods. Journal of Quantitative Spectroscopy & Radiative Transfer, 201, 180-183. https://doi.org/10.1016/j.jqsrt.2017.07.013