Tetrahertz Pulse Radiation Properties of a Bi2Sr2CaCu2O8+δ Bowtie Antenna by Optical Pulse Illumination
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概要
- 論文の詳細を見る
We demonstrate, for the first time, terahertz (THz) pulse radiation properties from a current biased Bi2Sr2CaCu2O8+δ (BSCCO) bowtie antenna by femtosecond laser pulse illumination. The bias current, excitation laser power and temperature dependence of the radiated amplitude of THz pulse are basically in good agreement with those observed on YBa2Cu3O7-δ (YBCO). However, the detailed properties of the THz pulse from BSCCO are considerably different from those for YBCO. The observed amplitude of the terahertz (THz) radiation pulse was very strong due to the small index value of BSCCO thin film even for the small bias current, and the Fourier components of the pulse contains the frequencies lower than 0.4 THz with a central frequency around 0.1–0.16 THz reflecting its long relaxation time of photo-excited quasi-particle in BSCCO.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2002-04-15
著者
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Kiwa Toshihiko
Research Center For Superconductor Photonics Osaka University:crest Japan Science And Technology Cor
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TONOUCHI Masayoshi
Research Center for Superconducting Materials and Electronics, Osaka University
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Misra Mukul
Research Center For Superconductor Photonics Osaka University
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Iguchi Ienari
Department Of Applied Physics Tokyo Institute Of Technology
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Murakami Hironaru
Research Center For Superconductor Photonics Osaka University
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Uchiyama Tetsuji
Department Of Physics Tokyo Institute Of Technology
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Wang Zhen
Kansai Advanced Research Center Communications Research Laboratory
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Iguchi Ienari
Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
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Uchiyama Tetsuji
Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
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Misra Mukul
Research Center for Superconductor Photyonics, Osaka University, Suita, Osaka 565-0871, Japan
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Tonouchi Masayoshi
Research Center for Superconductor Photyonics, Osaka University, Suita, Osaka 565-0871, Japan
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Kiwa Toshihiko
Research Center for Superconductor Photyonics, Osaka University, Suita, Osaka 565-0871, Japan
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Murakami Hironaru
Research Center for Superconductor Photyonics, Osaka University, Suita, Osaka 565-0871, Japan
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