Space selective reduction of europium ions via SrF2 crystals induced by high repetition rate femtosecond laser
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概要
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We report using high repetition rate near-infrared femtoseond laser to reduce Eu3+ into Eu2+ inside oxyfluoride glass. SrF2 crystal was space-selectively precipitated with the irradiation of femtosecond laser and we successfully realized the reduction of Eu ions, confirmed with the observation of blue emission of Eu2+ at laser irradiated spots. The mechanism of the reduction is different from those in previous work which is based on the active electron and holes created by the infrared laser pulse. This work could extend selection of host composition of Eu-doped glass for 3D optical information storage.
著者
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Hirao Kazuyuki
Department Of Material Chemistry Graduate School Of Engineering Kyoto University
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SHIMOTSUMA Yasuhiko
Department of Material Chemistry, Graduate School of Engineering, Kyoto University
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Qiu Jianrong
State Key Laboratory Of Silicon Materials Zhejiang University
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WU Nan
Department of Material Chemistry, Kyoto University
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Sakakura Masaaki
Innovate Collaboration Center Kyoto University
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Shimizu Masahiro
Department Of Anesthesiology Saitama Medical Center Saitama Medical School
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Miura Kiyotaka
Department Of Internal Medicine Division Of Clinical Oncology & Respiratory Medicine Shimane University Faculty Of Medicine
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Wang Xi
Department Of Cardiology Renmin Hospital Of Wuhan University
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Miura Kiyotaka
Department of Material Chemistry, Graduate School of Engineering, Kyoto University
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SAKAKURA Masaaki
Innovative Collaboration Center of Kyoto University
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WANG Xi
Department of Material Chemistry, Graduate School of Engineering, Kyoto University
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Zhou Shifeng
Department of Material Chemistry, Graduate School of Engineering, Kyoto University
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WU Nan
Department of Material Chemistry, Graduate School of Engineering, Kyoto University
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