Mid-infrared emission and Judd-Ofelt analysis of Dy3+-doped infrared Ga-Sb-S and Ga-Sb-S-PbI2 chalcohalide glasses

作者：Guo, Jixiao; Jiao, Qing^*; He, Xiaolong; Guo, Hansong; Tong, Jianghao; Zhang, Zhihang; Jiang, Fuchao; Wang, Guoxiang

来源：Infrared Physics & Technology, 2018, 89: 115-119.

DOI：10.1016/j.infrared.2018.01.002

• Chalcogenide glass
• Rare earth ions
• Infrared emission
• J-O analysis

Dy3+-doped Ga-Sb-S and Ga-Sb-S-PbI2 chalcohalide glasses were prepared by traditional melt quenching method. The effect of halide PbI2 on the physical and optical properties of Dy3+ ions was investigated. The density and ionic concentration of the host sample increased with the introduction of PbI2 halides, whereas the refractive index at 1.55 mu m decreased. The Judd-Ofelt parameters showed that Omega(2) increased in PbI2-modified glass, whereas the Omega(6) value showed the opposite tendency. Infrared emission spectrum also showed that the intensity increased with PbI2 addition, and considerable enhancement at 2.8 mu m was observed in the mid-infrared region. The halide PbI2 promoted the reduction of phonon energy of the host and the improvement of the laser pump efficiency, which led to the construction of optimized infrared glass materials for optical applications.

• 出版日期2018-3
• 单位宁波大学