Fabrication and comprehensive structural and spectroscopic properties of Er:Y_(2)O_(3)transparent ceramics  

作　　者：Yan Ling Xue Feng Zhu Jun Wang Shiyu Sun Lili Hu Dingyuan Tang 

机构地区：[1]School of Communication and Electronics Engineering,East China Normal University,Shanghai 200241,China [2]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China [3]Shanghai Research Center for Quantum Sciences,Shanghai 201315,China [4]School of Electrical and Electronic Engineering,Nanyang Technological University,639798,Singapore [5]Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

出　　处：《Journal of Rare Earths》2022年第12期1913-1919,I0004,共8页稀土学报（英文版）

基　　金：Project supported by the National Key Research and Development Program of China(2016YFA0302001);National Natural Science Foundation of China(11654005);Quantum Information Technology,Shanghai Municipal Science and Technology Major Project(2019SHZDZX01);A*Star of Singapore(A1883C0003);Natural Science Foundation of Jiangsu Province(BK20191002)。

摘　　要：Transparent Er:Y_(2)O_(3)ceramics with sub-micron grain size(<1μm)were fabricated by using one-step vacuum sintering followed by hot isostatic pressing(HIPing)technique.The transmission of the undoped Y_(2)O_(3)reaches 83%.The structural characteristics including the phonon energy were investigated through X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR)analysis and scanning electron microscopy(SEM)measurement.The overall spectroscopic properties of transmission,fluorescence emission up to 3000 nm,lifetime,up-conversion luminescence,and refractive index were systematically studied for both 0.25 at%and 7.0 at%Er:Y_(2)O_(3)ceramics with different thicknesses.The comparison of the spectra of the fluorescence emission and up-conversion luminescence under both 976 and 808 nm laser excitation was performed.The multiple high-energy-state transitional processes after the excited state absorption(ESA)processes involved in the up-conversion are discriminated between the multi-phonon non-radiative transitions and the radiative transitions according to the measured maximum phonon vibrational energy.The calculation was performed based on the Judd-Ofelt theory.

关 键 词：ERBIUM SESQUIOXIDES Vibrational energy RED-SHIFT UP-CONVERSION Judd-Ofelt theory 

分 类 号：TQ174.758.23[化学工程—陶瓷工业]