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Optics and Spectroscopy

, Volume 116, Issue 5, pp 769–772 | Cite as

Broadening of the lines due to the 4f n -4f n − 15d transitions of Ce3+, Pr3+, and Tb3+ ions in the absorption spectra of CdF2 crystals

  • E. A. Radzhabov
XV International Feofilov Symposium
  • 47 Downloads

Abstract

The structure of the absorption spectra of Ce3+, Pr3+, and Tb3+ ions in the vicinity of 4f-5d transitions has been investigated. At low temperatures the absorption spectra exhibit a weakly pronounced fine structure, in contrast to narrow-line spectra in crystals of Ca, Sr, and Ba fluorides. The spectra of Ce3+, Pr3+, and Tb3+ ions in CdF2 can be considered as the absorption spectra of these ions in alkali-earth fluorides, broadened by 60–75 cm−1. The broadening is related to the autoionization of electron from the local 5d(e g ) level to the energy-degenerate states of the conduction band of CdF2 crystal.

Keywords

Fano Resonance Zero Phonon Line CdF2 Crystal Electron Autoionization Alkali Earth Fluoride 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Pleiades Publishing, Ltd. 2014

Authors and Affiliations

  1. 1.Russian Academy of SciencesIrkutskRussia
  2. 2.Irkutsk State UniversityIrkutskRussia

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