Dy3+-doped Ga-Sb-S chalcogenide glasses for mid-infrared lasers

作者：Zhang, Mingjie; Yang, Anping^*; Peng, Yuefeng; Zhang, Bin; Ren, He; Guo, Wei; Yang, Yan; Zhai, Chengcheng; Wang, Yuwei; Yang, Zhiyong; Tang, Dingyuan

来源：Materials Research Bulletin, 2015, 70: 55-59.

DOI：10.1016/j.materresbull.2015.04.019

• A. Chalcogenides
• A. Glasses
• C. Raman Spectroscopy
• B. Optical properties
• B. Luminescence

Novel Ga-Sb-S chalcogenide glasses doped with different amount of Dy3+ ions were prepared. Their thermal stability, optical properties, and mid-infrared (MIR) emission properties were investigated. The glasses show good thermal stability, excellent infrared transparency, very low phonon energy (similar to 306 cm(-1)), and intense emissions centered at 2.95, 3.59, 4.17 and 4.40 mu m. Three Judd-Ofelt intensity parameters (Omega(2)= 8.51 x 10(-20) cm(2), Omega(4)=2.09 x 10(-20) cm(2), and Omega(6) = 1.60 x 10(-20) cm(2)) are obtained, and the related radiative transition properties are evaluated. The high quantum efficiencies and large stimulated emission cross sections of the MIR emissions (88.10% and 1.11 x 10(-20) cm(2) for 2.95 mu m emission, 75.90% and 0.38 x 10(-20) cm(2) for 4.40 mu m emission, respectively) in the Dy3+-doped Ga-Sb-S glasses make them promising gain materials for the MIR lasers.

• 出版日期2015-10
• 单位中国工程物理研究院