Behavior of Yb3+ and Er3+ during Heat Treatment in Oxyfluoride Glass Ceramics
Figure 8
Fluorescence decays of Er3+ around 842 nm (corresponding to the 4S3/2→4I11/2 emission) obtained in SA1.8EY and SA2.18EY glass and in these samples heat treated at 675 and 690°C for 48 h and excited at 550 nm.
