Figure 10.

Normalized radiative decay curves of Dy${}^{3+}$ in Dy${}^{3+}$ single-doped BaB glass with varying Dy${}^{3+}$ contents (all values are in at.%), recorded for the Dy${}^{3+}$-related ${}^4$F${}_{9/2}$ to ${}^6$H${}_{13/2}$ transition at 575 nm under 455-nm excitation. The solid curves (green) represent the best fit on the basis of the Inokuti–Hirayama model with the multipolar interaction parameter, S, set to 6 (dipole–dipole interaction).