Compositional dependence of optical properties of Sm3+-doped Y3ScxAl5-xO12 polycrystalline ceramics

Fabrication, microstructure, and optical properties of Tm:Y3ScAl4O12 laser ceramics

“…Several RE 3+ :YSAG ceramics have been studied and some advantages of the RE:YSAG ceramics have been discussed and compared with RE:YAG ceramics. It has been confirmed that the Sc 3+ doping would broaden the bandwidths of the absorption and emission spectra of the active ions (Yb 3+ , Nd 3+ ), which is favorable for the generation of the ultrafast pulse laser in the mode‐locking laser regime . In particular, it is believed that the larger radius of the Sc 3+ compared with Al 3+ may increase the distance between lattice sites, which decreases the Tm‐Tm interaction in highly doped Tm:YSAG single crystals .…”

“…It has been confirmed that the Sc 3+ doping would broaden the bandwidths of the absorption and emission spectra of the active ions (Yb 3+ , Nd 3+ ), which is favorable for the generation of the ultrafast pulse laser in the mode-locking laser regime. [27][28][29][30][31][32] In particular, it is believed that the larger radius of the Sc 3+ compared with Al 3+ may increase the distance between lattice sites, which decreases the Tm-Tm interaction in highly doped Tm:YSAG single crystals. 33,34 The Tm:YSAG ceramics are potential mid-infrared laser materials, and some researches on the Tm:YSAG single crystals or ceramics have been reported.…”