Absorption and luminescence properties of terbium ions in heavy metal glasses.

Highlights: [•] Tb-doped heavy metal glasses were studied as a function of glass composition. [•] Excitation and luminescence spectra of Tb ions in heavy metal glasses were examined. [•] Luminescence intensity ratios (G/B) and measured lifetimes of Tb were determined. [•] Correlation between G/B factor, measured lifetimes and energy phonon was proposed. [ABSTRACT FROM AUTHOR]