Disorder and the optical spectroscopy of Cr3+-doped glasses: II. Glasses with high and low ligand fields

F. Rasheed, K. P. O'Donnell, B. Henderson, D. B. Hollis

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70 Citations (Scopus)


The paper reports spectroscopic studies of Cr3+ ions in fluorozirconate. fluoride, borate and telluride glasses in which the average strength of the octahedral crystal field Dq/B varies from 1.6 to 2.4. The emission spectra are shown to be inhomogeneously broadened by disorder. Non-exponential decay of the emission intensity following pulsed excitation is another signature of the extensive disorder in these glasses. The large density of states of two-level systems is shown to account for the larger-than-expected homogeneous width of the R line in lithium borate and potassium borate glasses.

Original languageEnglish
Article number015
Pages (from-to)3825-3840
Number of pages16
JournalJournal of Physics: Condensed Matter
Issue number21
Publication statusPublished - 1 Dec 1991


  • optical spectroscopy
  • emission spectra
  • crystal field splitting


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