Fabrication and optical characterizations of Yb,Er codoped CaF2 transparent ceramic |
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| Affiliation: | 1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China;2. Center of Materials Research and Analysis, Wuhan University of Technology, Wuhan 430070, China;1. Université de Sfax, Faculté des Sciences de Sfax, Département de Physique, Laboratoire de Physique Appliqueée, Groupe des matériaux luminescents, Sfax 3018, Tunisia;2. Laboratoire de Chimie de la matière condensée de Paris, CNRS-UMR 7574, ENSCP-11 rue Curie, 75005 Paris, France;1. State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China;2. Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory, Southwest University of Science and Technology, Mianyang, 621010, China;3. Institutes of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China;1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, CAS, Shanghai, 201800, China;2. University of Chinese Academy of Sciences, Beijing, 100049, China;3. Shanghai Institute of Ceramics, CAS, Shanghai, 200050, China;4. IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai, 200240, China;5. Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621999, People’s Republic of China;6. Science and Technology on Plasma Physics Laboratory, Mianyang 621999, People’s Republic of China;1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China;2. Center of Materials Research and Analysis, Wuhan University of Technology, Wuhan, 430070, China |
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| Abstract: | Nanoparticles of Yb, Er codoped calcium fluoride were obtained by a co-precipitation method. Scanning electron microscope (SEM) and X-ray powder diffraction (XRD) analysis showed that the obtained nanoparticles were single fluorite phase with grains size around 30–50 nm. Yb, Er:CaF2 transparent ceramics were fabricated by hot pressing (HP) the nanoparticles at a temperature of 800 °C in a vacuum environment. For a 2 mm thickness ceramic sample, the transmittance at 1200 nm reached about 83%. Microstructures were characterized using SEM analysis, and the average grain size was about 700 nm. Grain boundaries of the ceramic sample were clean and no impurities were detected. The absorption, upconversion and infrared emission spectra of transparent ceramic sample under 978 nm excitation were measured and discussed. |
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| Keywords: | Hot pressing Calcium fluoride Erbium Ytterbium Transparent ceramic |
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