Preparation and 1.3 μm Emission of Pr3+ Doped Transparent Nano-Glass Ceramics Containing SrF2

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概要

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• Transparent glass ceramics containing fluorite nano-crystals were developed from oxyfluoride glasses containing 32 mol% SrF2 doped with Pr3+ and Yb3+ ions. Materials containing xSrF2+(32-x)CaF2 were also prepared and their fluorescence properties were investigated. Fluorite solid solution crystals containing lanthanide ions were precipitated as a single phase in all the glass ceramic compositions by heat-treatment at appropriate temperatures. The glass ceramics showed Pr3+: 1.3 μm emission, the intensity of which became stronger with increasing SrF2 content and heat-treatment temperature, while only the 1 μm emission of Yb3+ was observed in all the as-made glasses. The lattice constant of fluorite crystals increased with increasing Sr content. Among all the samples, the glass ceramic sample with 32 mol% SrF2 showed the strongest 1.3 μm emission.

著者

• Tanabe Setsuhisa

  Graduate School Of Human And Environmental Studies Kyoto Univ.

• Murakami Takashi

  Graduate School of Fisheries Sciences Hokkaido University

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