Nd^(3+) doped fluorochlorozirconate glass: 3.9 μm MIR emission properties and energy transfer  

作　　者：晏明 张晓松 李岚 莫兆军 金含 丁琪 丁文龙 

机构地区：[1]Key Laboratory for Optoelectronic Materials and Devices of Tianjin, Key Laboratory of Display Materials and Photoelectric Devices of Ministry of Education, Institute of Material Physics, Tianjin University of Technology

出　　处：《Optoelectronics Letters》2017年第5期344-348,共5页光电子快报（英文版）

基　　金：supported by the National High Technology Research and Development Program of China(No.2013AA014201);the Natural Science Foundation of Tianjin(Nos.11JCYBJC00300,14JCZDJC31200,15JCYBJC16700 and 15JCYBJC16800);the National Key Foundation for Exploring Scientific Instrument of China(No.2014YQ120351);International Cooperation Program from Science and Technology of Tianjin(No.14RCGHGX00872)

摘　　要：The Nd^(3+) doped fluorochlorozirconate(FCZ) glass was prepared by melt-quenching method. The 3.9 μm emission from Nd^(3+) ions is attributed to the two-photon absorption process. The strong emission transition at 3.9 μm fluorescence peak intensity, corresponding to the ~4G_(11/2)→~2K_(13/2) transition, is directly proportional to the NaCl concentration. With the increase of the Cl-ions amount, the mid-infrared(MIR) luminescent intensity is significantly enhanced. Additionally, the Judd-Ofelt(J-O) parameter ?_2 is larger than that of the fluorozirconate(FZ) glass, which indicates the covalency of the bond between RE ions and ligand is stronger as Cl-ions substitution of F-ions in chloride FZ glass. The X-ray diffraction(XRD) patterns show that the amorphous glassy state keeps the FZ glass network structure. In brief, the advantageous spectroscopic characteristics make the Nd^(3+)-doped FCZ glass be a promising candidate for application of 3.9 μm emission.

关 键 词：Energy transfer IONS Two photon processes X ray diffraction 

分 类 号：TQ171.1[化学工程—玻璃工业]