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

Experimental investigation of the hyperfine structure of Tm I with Fourier transform spectroscopy, part A: In the visible wavelength range (400–700 nm)

“…Further lines in the infrared spectral range have been examined by a part of the team. They are published in Part B of this work [29].…”

“…In the present study, we determined experimentally for the first time the hfs constant A of 20 energy levels by investigating spectral lines in the visible wavelength range. This work is supplemented by an investigation of Tm FT spectra in the near infrared wavelength range [29].…”

Hyperfine Structure Investigation of Singly Ionized Thulium in Fourier-transform Spectra

“…The FT spectra of the element Tm in the range of 335-2345 nm were measured at the Laser Center at the University of Latvia. The spectra in the visible (VIS) and near-infrared (IR) spectral range have already been used in earlier work of our group for an analysis of the HFS of atomic Tm (Parlatan et al 2022;Kebapcı et al 2022). Detailed information about the experiment can be found in these papers.…”