Luminescence behavior of Yb3+heavy-doped yttrium lanthanum oxide transparent ceramics

Dependence of spectroscopic and thermal properties on concentration and temperature for Yb:Y2O3 transparent ceramics

“…The typical trivalent lanthanides are Nd 3+ and Yb 3+ ions [12,13]. With only two energy manifolds, the 2 F 7/2 ground state and the 2 F 5/2 excited state, the Yb 3+ lasers operated in quasi-three-level scheme, which prevent parasitic de-excitation by cross-relaxation, energy transfer up-conversion or excited state absorption, leading to low quantum defect and low heat generation [14][15][16]. The long lifetime of Yb 3+ metastable level favors low threshold in continuous-wave and high storage for Q-switch operation, whereas the broad emission lines show prospect for tunable or ultra-short pulse generation [17].…”

Effect of ZrO2 on the sinterability and spectral properties of (Yb0.05Y0.95)2O3 transparent ceramic

“…Instead, Y 2 O 3 ceramics are easy to prepared for low sintering temperature. Conventionally, Y 2 O 3 transparent ceramics have been fabricated by hot press or normal sintering with ThO 2 , HfO 2 and La 2 O 3 as additives [7,8]. However, these additives were not widely used for toxicity and expense.…”

Optical, luminescent and laser properties of highly transparent ytterbium doped yttrium lanthanum oxide ceramics

“…10. This up-conversion luminescence was noticed in Yb 3+ doped and investigated in Yb 3+ -Er 3+ co-doped yttrium ceramics [2,16,17]. The most intense bands at 530-560 nm are ascribed to 2 H 11/2 , 4 S 3/2 ?…”