High Temperature Superconductor Terahertz Emitters: Fundamental Physics and Its Applications
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概要
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Coherent and continuous radiation sources of the electromagnetic (EM) waves at terahertz (1 THz = 10^{12} c/s) frequencies using a mesa structure fabricated from high temperature superconducting Bi2Sr2CaCu2O8+\delta single crystals are described with a special emphasis on the physics of the radiation mechanism and the applications. After the intensive studies of many mesas fabricated with different conditions, it is revealed that the ac-Josephson effect works as a primary driving mechanism of the radiation and the cavity resonance needed for stronger radiation plays an additional role to the mechanism, although both are working together while radiating. A prototype of the imaging machine for multipurpose uses has successfully been developed.
- 2012-01-25
著者
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Tachiki Masashi
Institute For Materials Research Tohoku University
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Minami Hidetoshi
Institute Of Applied Physics University Of Tsukuba
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Yamamoto Takashi
Institute For Molecular Science
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Kashiwagi Takanari
Institute Of Materials Science And Graduate School Of Pure And Applied Sciences University Of Tsukuba
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Tsujimoto Manabu
Institute Of Materials Science And Graduate School Of Pure And Applied Sciences University Of Tsukuba
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Kadowaki Kazuo
Institute Of Materials Science And Graduate School Of Pure And Applied Sciences University Of Tsukuba
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Hagino Shota
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Delfanazari Kaveh
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Yamaki Kazuhiro
Department of Advanced Interdisciplinary Sciences, Graduate School of Engineering, Utsunomiya University, Utsunomiiya 321-8585, Japan
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Deguchi Kota
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Orita Naoki
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Koike Takashi
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Nakayama Ryo
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Kitamura Takeo
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Sawamura Masashi
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Ishida Kazuya
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Ivanovic Krsto
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Asai Hidehiro
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Klemm R.
Department of Physics, University of Central Florida, Orlando, FL 32816, U.S.A.
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Minami Hidetoshi
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Tachiki Masashi
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Kashiwagi Takanari
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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Tsujimoto Manabu
Institute of Materials Science, Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
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