Enhanced THz Radiation from YBCO Using a-Axis Oriented Thin Films Excited by Ultrashort Optical Pulses (Special Issue on Basic Properties and Applications of Superconductive Electron Devices)
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概要
- 論文の詳細を見る
The electric field intensity of the THz radiation from YBCO thin films excited by ultrashort laser pulses has been enhanced by a factor of 〜3 using a-axis oriented films instead of c-axis oriented ones used previously under the same excitation conditions. This corresponds to the enhancement of a factor of 10 for the radiation power. From the transmittance measurements of the millimeter wave for a- and c-axis oriented films, the origin of the enhancement is attributed to the increased fraction of the THz electromagnetic wave power transmitted from the YBCO film to free space. This result indicates that the utilization of the anisotropic properties of high-T_c. superconductors is effective to enhance the radiation power.
- 社団法人電子情報通信学会の論文
- 1997-10-25
著者
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Sakai Kiyomi
Kansai Advanced Research Center Communications Research Laboratory The Ministry Of Posts And Telecom
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Sakai K
宮崎大
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Hangyo M
Research Center For Superconductor Photonics Osaka University
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Hangyo Masanori
Department Of Applied Physics Osaka University
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Hangyo Masanori
Department Of Physics Faculty Of Science Kyoto University
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SHIKII Shin-ichi
Research Center for Superconducting Materials and Electronics, Osaka University
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SHIKII Shin-ichi
the Research Center for Superconducting Materials and Electronics, Osaka University
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TANICHI Norihide
the Research Center for Superconducting Materials and Electronics, Osaka University
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NAGASHIMA Takeshi
the Research Center for Superconducting Materials and Electronics, Osaka University
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TONOUCHI Masayoshi
the Research Center for Superconducting Materials and Electronics, Osaka University
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HANGYO Masanori
the Research Center for Superconducting Materials and Electronics, Osaka University
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TANI Masahiko
the Kansai Advanced Research Center, Communications Research Laboratory
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SAKAI Kiyomi
the Kansai Advanced Research Center, Communications Research Laboratory
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Tanichi Norihide
The Research Center For Superconducting Materials And Electronics Osaka University
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Shikii Shin-ichi
Research Center For Superconducting Materials And Electronics Osaka University
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Nagashima Takeshi
The Research Center For Superconducting Materials And Electronics Osaka University
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