Open AccessSpectroscopic Properties and Continuous Wave Laser Performances at 1064 nm of Nd3+: LuAG Transparent Ceramic
Author(s) -
Chaoyang Ma,
Jiangfeng Zhu,
Zhongqi Hu,
Zicheng Wen,
Jiaqi Long,
Xuanyi Yuan,
Yongge Cao
Publication year - 2017
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2017.2682850
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
A transparent 2 at% Nd3+-doped Lu3Al5O12 (LuAG) ceramic was fabricated by using tape-casting method and solid-state sintering technology. Based on the room temperature absorption spectrum, the three J-O intensity parameters were calculated with Judd-Ofelt analysis, and then, the radiative transition rates and branching ratios of transitions from 4F3/2 manifold to the 4IJ' (J' = 13/2, 11/2, 9/2) lower lying multiple manifolds were determined. The quantum efficiency of 80.4% was evaluated from the measured fluorescence lifetime and the radiative lifetime of the 4F3/2 manifold state. Also, the inter-Stark energy levels of the 4I.J' manifolds were performed, and the peak emission cross sections of the 4F3/2 → 4IJ' intermanifold transitions were determined. The total emission cross section for 4F3/2 → 4I9/2, 4I11/2, and 4I13/2 transitions was calculated to be 7.41 × 10-20 cm2, 29.83 × 10-20 cm2, and 10.53 × 10-20 cm2, respectively. Finally, under an 808 nm diode laser pumping, the continuous wave laser performances of the Nd:LuAG transparent ceramic were investigated.