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We demonstrate how the existence of the oxygen-affected sites in the glass matrix of the Pr 3+ —activated fluoroaluminate glass reflects the unusual decay time dependence on the emission wavelength. The previously proposed model of the “defect state” has been redefined, developed and used to describe the wavelength dependence of the emission decays of three different emission bands. The model...
We report on the upconverted luminescence in neodymium-activated fluoroaluminate glass obtained with 800nm diode laser excitation. Several anti-Stokes emissions: at 588, 607, 720 and 750nm are observed and appropriate transitions are assigned. For both latter emissions we observe strong dependence on temperature: the 720nm emission intensity decreases with temperature, whereas the 750nm emission increases...
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