Abstract

We have systematically studied the spectral properties of Ce³⁺, Tb³⁺ ions in different glass hosts^[1]. In this paper the concentration effect and energy transfer process between Tb³⁺ and Ce³⁺ ions were reported. A series of glasses with the following doping concentration were prepared. (1) Tb³⁺ — 2, 4, 8, 12, 16 wt%. (2) Ce³⁺ — 1, 3, 5 wt%, 17 mol%. (3) 8 wt% Tb, Ce³⁺ — 1, 3, 5 wt% The emission and excitation spectra of these glasses were obtained using Hitachi Model 650-60 fluorescence spectrophotometer. Decay times of the ⁵D₄ - ⁷F₅ transition (542nm, 548nm) at the different Tb³⁺ concentrations were measured using an KrF excimer laser with pulse duration 10ns as the exciting light source.

© 1984 Optical Society of America