Fluorescence dynamics of Tb3+ and Tb3+/Ho3+ doped phosphate glasses

Luminescence and energy transfer in Dy3+/Tb3+ co-doped CaO–Al2O3–B2O3–RE2O3 glass

“…In glasses Ca 0.987 − x AlB:Dy 3+ 0.013 ,Tb 3+ x (C Dy = 1.42 wt.%) (curve a), the ratios (I 0 /I) vs (C Dy + C Tb ) 2 are linear in the Tb 3+ -concentration range of 0 to 18 wt.%, so as in the range of 0 to 13 wt.% for glasses Ca 0.978 − y AlB: Dy 3+ 0.022 ,Tb 3+ y (C Dy = 2.46 wt.%) (curve b). Their linear behaviors confirm the involvement of dipole-dipole interaction in the energy transfer process [17,23,30,35]. The deviation from linearity found both in curves a and b results from the concentration quenching on high acceptor (Tb 3+ ) concentration.…”

Luminescent properties and energy transfer mechanism of NaGd(MoO4)2:Sm3+, Eu3+ phosphors

“…For more intuitive understanding the process of energy transfer between Sm 3 þ and Eu 3 þ , some calculations can be made. The energy transfer efficiency can be expressed as follows [20,21]:…”

Green fluorescence of terbium ions in lithium fluoroborate glasses for fibre lasers and display devices

“…Among the observed emission transitions of 1.0 mol% Tb 3+ -doped LBZLFB glass the experimental branching ratio of 5 D 4 → 7 F 5 transition is found to be 0.6 and this transition may therefore be considered as an effective laser transition suggesting its suitability for green colour display devices and to design a fibre laser. To investigate the possibility of laser emission through the 5 D 4 → 7 F 5 transition, the stimulated emission cross section (σ e ), gain band width parameter (σ e × λ p ) are obtained from the full-width at half maximum ( λ p ) and optical gain parameter (σ e × τ m ) are determined for all the intense transitions originating from 5 other hosts [16,19,25,26], we suggest that 1.0 mol% Tb 3+ -doped LBZLFB glass has the potential candidate to produce intense green laser at 548 nm through the 5 D 4 → 7 F 5 transition.…”