Growth and Characterization of Yb3+-doped (Lu,Y)AlO3 Fiber Single Crystals Grown by the Micro-Pulling-Down Method
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概要
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Yb3+-doped (Lu,Y)AlO3 single crystals have been grown by the micro-pulling-down method with a radio-frequency heating system. Starting melt compositions of LuxY0.9-xYb0.1AlO3 were varied with $x=0.1$, 0.2, 0.35, and 0.4. The best Yb3+-doped (Lu,Y)AlO3 single crystals were obtained applying a pulling rate of 0.12 mm/min. To investigate the compositional homogeneity, the effective segregation coefficient of Lu and Yb ions was estimated $k_{\text{eff}}=1.02$ and 1.05 for Lu0.2Y0.7Yb0.1AlO3 crystal, respectively. Absorption, radio-luminescence and luminescence decay kinetic of Yb3+-doped (Lu,Y)AlO3 was investigated for room temperature conditions and found to be similar to that of Yb3+-doped YAlO3. Very fast charge transfer luminescence of Yb3+ in the near ultraviolet to visible spectral range and the high density of the LuAlO3 make this material a promising candidate for fast scintillators.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-11-15
著者
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Nikl Martin
Institute Of Physics
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Isshiki Minoru
Instite For Advanced Materials Processing Tohoku University
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Yoshikawa Akira
Institute For Materials Research
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Yoon Dae-ho
Department Of Advanced Materials Engineering Sungkyunkwan University
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Shim Jang
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
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Pejchal Jan
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
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Fukuda Tsuguo
Institute For Material Research Tohoku University
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Yoon Dae-Ho
Department of Advanced Materials Engineering, Sungkyunkwan University, Suwon 440-746, Korea
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PEJCHAL Jan
Institute for Materials Research, Tohoku University
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Pejchal Jan
Institute of Physics AS CR, Cukrovarnicka 10, Prague 16253, Czech Republic
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Isshiki Minoru
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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Shim Jang
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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