Steady-state and time resolved laser spectroscopy of Cr<sup>3+</sup> in lead-based fluoride glasses
R Balda; J Fernandez; M J Elejalde; M A Illarramendi; C Jacoboni; R Balda; Dept. de Fisica Aplicada I, Escuela Tecnica Superior de Ingenieros Ind. y de Telecommun., Pais Vasco Univ., Bilbao, Spain; J Fernandez; Dept. de Fisica Aplicada I, Escuela Tecnica Superior de Ingenieros Ind. y de Telecommun., Pais Vasco Univ., Bilbao, Spain; M J Elejalde; Dept. de Fisica Aplicada I, Escuela Tecnica Superior de Ingenieros Ind. y de Telecommun., Pais Vasco Univ., Bilbao, Spain; M A Illarramendi; Dept. de Fisica Aplicada I, Escuela Tecnica Superior de Ingenieros Ind. y de Telecommun., Pais Vasco Univ., Bilbao, Spain; C Jacoboni; Dept. de Fisica Aplicada I, Escuela Tecnica Superior de Ingenieros Ind. y de Telecommun., Pais Vasco Univ., Bilbao, Spain
Журнал:
Journal of Physics: Condensed Matter
Дата:
1991-09-30
Аннотация:
The optical properties of Cr<sup>3+</sup> ions in lead-based fluoride glasses (PBI, PZG) have been investigated. Optical absorption, emission, lifetimes, and time resolved spectra were measured. The thermal quenching of the broadband emission is discussed in terms of the quantum mechanical single configurational coordinate (QMSCC) model using the Struck and Fonger method, and a good agreement with the experimental results is obtained. In order to correlate glass matrix composition with emission spectral properties, detailed time-resolved measurements have been performed. The obtained results provide a first insight into a possible site distribution of Cr<sup>3+</sup> in these glasses.
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