Behavior of Yb3+ and Er3+ during Heat Treatment in Oxyfluoride Glass Ceramics
Figure 9
Infrared fluorescence decays of the glass around 975 nm in both ratios (SA1.8EY and SA2.18EY) samples which were heat treated at 630, 660, 675, and 690°C for 48 h and excited at 940 nm.
