Abstract
The optical properties of Pr 3+ ions in some borate based glasses with varying concentration of lead oxide have been studied. The concentration of lead oxide has been varied from 0 to 50 mol%. The Judd–Ofelt intensity parameters ( Ω λ) and other radiative properties for the glasses have been calculated. Variations of Judd–Ofelt intensity parameters are discussed on the basis of structural analysis. It is observed from fluorescence spectra that the fluorescence yield increases with addition of lead oxide and is about five times greater at 40% PbO than that at 0% PbO.
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