Experimental investigation of the hyperfine structure of Tm I with Fourier transform spectroscopy part b: In the NIR wavelength range from 700 nm to 2250 nm

Creative Commons License

Kebapci T. Y., Sert S., Parlatan S., Ozturk I. K., Basar G., Başar G., ...More

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, vol.287, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 287
  • Publication Date: 2022
  • Doi Number: 10.1016/j.jqsrt.2022.108196
  • Journal Name: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Artic & Antarctic Regions, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: Hyperfine structure, Atomic thulium, Fourier-Transform spectroscopy, NIR, HIGH-RESOLUTION MEASUREMENTS, NUCLEAR MAGNETIC-MOMENT, EXCITED-STATES, CONFIGURATIONS, 4F125D6S2, LEVEL
  • Istanbul Technical University Affiliated: Yes

Abstract

In this study, we investigated the hyperfine structure of 43 spectral lines of atomic thulium. We analyzed Fourier-transform spectra in the wavelength range from 700 nm to 2250 nm, which corresponds to the wavenumber range from 14300 cm(-1) to 4440 cm(-1), respectively. The excited thulium atoms were generated in a hollow-cathode lamp. As a result of this investigation, the magnetic-dipole hyperfine constant A of 17 fine structure levels have been determined experimentally, 14 of them for the first time. The magnetic-dipole hyperfine constant values of the three remaining levels, reported in the literature, differed significantly from the results of our determination. (C) 2022 Elsevier Ltd. All rights reserved.