The absorption and fluorescence spectra of Ho3+:LaF3, in the wavelength region from 4000 Å to 7500 Å have been reinvestigated incorporating polarization features, for the first time. The fluorescence spectrum, recorded using a spectrophotometer assembled in the laboratory, was excited with a He-Ne laser and an Ar+ laser. The present study enabled the interpretation of the data in terms of theC2v site symmetry of Ho3+ and most of the Stark components of the observed states have been classified under the irreducible representations of theC2v point group.
Volume 96, 2022
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