Disorder and nonradiative decay of Cr3+-doped glasses

B. Henderson, M. Yamaga, Y. Gao, K. P. O'Donnell

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

This paper describes experimental studies of the distributions of ligand field sites occupied by Cr3+ dopant ions in inorganic glasses with different chemical compositions. The effects of site-to-site disorder are observed via the steady-state spectral band-shape and decay patterns of 4T24A2 and 2E4A2 transitions of Cr3+ ions and their temperature dependences. The temperature dependence of the emission band shape, calculated on the assumption that the disorder distribution function is a Gaussian, agrees well with the experimental results. In addition, the peak wavelengths of the 4T24A2 broadbands of Cr3+ in different glasses are shifted to shorter wavelengths with increasing temperature, and the total intensities of the bands are reduced. These results are explained in terms of nonradiative decay of Cr3+ ions occupying weaker crystal-field sites.

Original languageEnglish
Pages (from-to)652-661
Number of pages10
JournalPhysical Review B
Volume46
Issue number2
DOIs
Publication statusPublished - 1 Jul 1992

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disorders
glass
decay
temperature dependence
ions
spectral bands
wavelengths
crystal field theory
chemical composition
distribution functions
broadband
ligands
temperature

Keywords

  • emission band shape
  • nonradiative transitions
  • spectral decomposition

Cite this

Henderson, B. ; Yamaga, M. ; Gao, Y. ; O'Donnell, K. P. / Disorder and nonradiative decay of Cr3+-doped glasses. In: Physical Review B. 1992 ; Vol. 46, No. 2. pp. 652-661.
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Disorder and nonradiative decay of Cr3+-doped glasses. / Henderson, B.; Yamaga, M.; Gao, Y.; O'Donnell, K. P.

In: Physical Review B, Vol. 46, No. 2, 01.07.1992, p. 652-661.

Research output: Contribution to journalArticle

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