A spectroscopic comparison of samarium-doped LiYF4 and KY3F10

Jon-Paul R. Wells, Akira Sugiyama, Thomas P.J. Han, Hugh G. Gallagher

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Laser selective excitation and fluorescence has been performed on LiYF4 and KY3F10 doped with samarium ions. In LiYF4, a single, tetragonal symmetry center associated with isovalent substitution of Sm3+ with lattice yttrium ions is present. By contrast, three Sm2+ centres and a single, tetragonal symmetry Sm3+ center are detected in KY3F10. This complex defect distribution is tentatively explained by the existence of charge-compensating F- vacancies.
Original languageEnglish
Pages (from-to)1029-1031
Number of pages3
JournalJournal of Luminescence
Volume87-89
DOIs
Publication statusPublished - May 2000

Keywords

  • crystal field interactions
  • defect states
  • fluorescence
  • impurity absorption spectra
  • impurity states
  • lithium compounds
  • potassium compounds
  • samarium
  • vacancies (crystal)
  • visible spectra
  • yttrium compounds

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