プラズマアンテナからのテラヘルツ電磁波エネルギー計測

• 研究課題/領域番号: 23540571
• 研究種目: 基盤研究(C)
• 配分区分: 基金
• 応募区分: 一般
• 研究分野: プラズマ科学
• 研究機関: 宇都宮大学
• 研究代表者: 湯上 登 宇都宮大学, 工学(系)研究科(研究院), 教授 (60220521)
• 研究期間 (年度): 2011 – 2013
• 研究課題ステータス: 完了 (2013年度)
• 配分額: 5,200千円 (直接経費: 4,000千円、間接経費: 1,200千円); 2013年度: 910千円 (直接経費: 700千円、間接経費: 210千円); 2012年度: 910千円 (直接経費: 700千円、間接経費: 210千円); 2011年度: 3,380千円 (直接経費: 2,600千円、間接経費: 780千円)
• キーワード: テラヘルツ / レーザー / プラズマ / 電磁波 / 高電圧 / 電磁波発生

研究概要

ガス中の電極に高電圧を印加し、電極間に超短パルスレーザーを照射しプラズマを生成することによりプラズマアンテナを形成した．プラズマには電流が流れ、その立ち上がり時間はレーザーのパルス幅程度となり、その逆数は 10の12乗 のオーダーとなり、そこからはテラヘルツ電磁波の発生が期待できる．実験では、窒素ガスを用いレーザーのパルス幅が 120 fs のとき 0.08 THz の電磁波が観測された．また、レーザーのパルス幅を変化させ 30 fs のとき 0.3 THz の電磁波放射が観測された．このように、レーザーパルスを変化させたときの電磁波周波数依存性は理論の予測と一致した．

研究成果

• [雑誌論文] A tapered parallel plate waveguide for frequency up-conversion of terahertz radiation (2012)
  • 著者名/発表者名: A. Nishida, H. Kashiwazaki, S. Yoshida, T. Higashiguchi, N. Yugami, and R. Kodama
  • 雑誌名: Rev . Sci. Instrum 巻: 83 ページ: 45104-45104
• [雑誌論文] Experimental observation of frequency up-conversion by flash ionization (2012)
  • 著者名/発表者名: A. Nishida, N. Yugami, T. Higashiguchi, T. Otsuka, F. Suzuki, M. Nakata, Y. Sentoku and R. Kodama
  • 雑誌名: Applied Phys. Lett 巻: 101 ページ: 161118-161118
• [雑誌論文] Experimental observation of frequency up-conversion by flash ionization (2012)
  • 著者名/発表者名: A. Nishida, N. Yugami, T. Higashiguchi, T. Otsuka, F. Suzuki, M. Nakata, Y. Sentoku and R. Kodama
  • 雑誌名: APPLIED PHYSICS LETTERS 巻: 101 号: 16 ページ: 161118-161118
  • DOI: 10.1063/1.4755843
  • 査読あり
• [雑誌論文] The effect of viewing angle on the spectral behavior of a Gd plasma source near 6.7 nm (2012)
  • 著者名/発表者名: Colm O’Gorman, Takamitsu Otsuka, Noboru Yugami, Weihua Jiang, Akira Endo, Bowen Li, Thomas Cummins, Padraig Dunne, Emma Sokell, Gerry OSullivan, and Takeshi Higashiguchi
  • 雑誌名: APPLIED PHYSICS LETTERS 巻: 100 号: 14 ページ: 141108-141108
  • DOI: 10.1063/1.3701593
  • 査読あり
• [雑誌論文] A tapered parallel plate waveguide for frequency up-conversion of terahertz radiation (2012)
  • 著者名/発表者名: A. Nishida1, H. Kashiwazaki, S. Yoshida, T. Higashiguchi, N. Yugami, and R. Kodama
  • 雑誌名: Rev. Sci. Instrum. 巻: 83 号: 4 ページ: 45104-45104
  • DOI: 10.1063/1.3697700
  • 査読あり
• [雑誌論文] Characteristics of argon plasma waveguide produced by alumina capillary discharge for short wavelength laser application (2012)
  • 著者名/発表者名: Takeshi Higashiguchi, Nadezhda Bobrova, Pavel Sasorov, Shohei Sakai, Yasuhiko Sentoku, Ryosuke Kodama and Noboru Yugami
  • 雑誌名: JOURNAL OF APPLIED PHYSICS 巻: 093302 号: 9 ページ: 93302-93302
  • DOI: 10.1063/1.4712038
  • 査読あり
• [雑誌論文] Microdischarge extreme ultraviolet source with alkali metal vapor for surface morphology application (2011)
  • 著者名/発表者名: Takeshi Higashiguchi, Hiromitsu Terauchi, Takamitsu Otsuka, Mami Yamaguchi, Keisuke Kikuchi, Noboru Yugami, Toyohiko Y atagai, Wataru Sasaki, Rebekah D'Arcy , Padraig Dunne, and Gerry O'Sullivan
  • 雑誌名: Journal of Applied Physics 巻: 109
• [雑誌論文] Spectral and temporal behavior of an alkali metal plasma extreme ultraviolet source for surface morphology applications (2011)
  • 著者名/発表者名: Takeshi Higashiguchi, Mami Y amaguchi, T akamitsu Otsuka, Hiromitsu Terauchi, Noboru Yugami, T oyohiko Yatagai, Rebekah D'Arcy , Padraig Dunne, and Gerry O'Sullivan
  • 雑誌名: Journal of Applied Physics 巻: 98
• [雑誌論文] Observation and numerical analysis of plasma parameters in a capillary discharge-produced plasma channel waveguide (2011)
  • 著者名/発表者名: Hiromitsu Terauchi, Nadezhda Bobrova, Pavel Sasorov , Takashi Kikuchi, Toru Sasaki, Takeshi Higashiguchi, Noboru Yugami, and Ryosuke Kodama
  • 雑誌名: Journal of Applied Physics 巻: 109
• [雑誌論文] Properties of a capillary discharge-produced argon plasma waveguide for shorter wavelength source application (2011)
  • 著者名/発表者名: Shohei Sakai, Takeshi Higashiguchi, Nadezhda Bobrova, Pavel Sasorov , Jun Miyazawa, Noboru Yugami, Yasuhiko Sentoku, and Ryosuke Kodama
  • 雑誌名: Review of Scientific Instruments 巻: 82
• [雑誌論文] Ion Acoustic Wave Steamers Excited by a Resonantly Signal Biased Mesh Antenna in an Inhomogeneous Plasma (2011)
  • 著者名/発表者名: Md. Kamal-Al-Hassan, Mikhail Strarodubtsev , Hitendra K. Malik, Noboru Yugami, and Yasushi Nishida
  • 雑誌名: IEEE trans. Plasma Sci 巻: 39 ページ: 1927-1927
• [雑誌論文] THz wave up-frequency turning by rapidly plasma creation (2011)
  • 著者名/発表者名: Akinori Nishida, Masahiro Nakata, Takafumi Oba, Takeshi Higashiguchi, Noboru Yugami, Yasuhiko Sentoku, and Ryosuke Kodama
  • 雑誌名: Proceedings of SPIE 巻: 8119
  • 査読あり
• [雑誌論文] Tunable terahertz radiation from an ultrashort-laser-pulse-induced discharge in biased air (2011)
  • 著者名/発表者名: Fuminori Suzuki, Hiroaki Anno-Kashiwazaki, Jun Miyazawa, Shohei Ono, Takeshi Higashiguchi, Noboru Yugami, Yasuhiko Sentoku, Ryosuke Kodama, and Patric Muggli
  • 雑誌名: Proceedings of SPIE 巻: 8119
  • 査読あり
• [雑誌論文] Properties of a capillary discharge-produced argon plasma waveguide for shorter wavelength source application (2011)
  • 著者名/発表者名: Shohei Sakai, Takeshi Higashiguchi, Nadezhda Bobrova, Pavel Sasorov, Jun Miyazawa, Noboru Yugami, Yasuhiko Sentoku, and Ryosuke Kodama
  • 雑誌名: Review of Scientific Instruments 巻: 82 号: 10
  • DOI: 10.1063/1.3657136
  • 査読あり
• [雑誌論文] A 6.x nm beyond EUV source as a future lithography source
  • 著者名/発表者名: Takamitsu Otsuka, Bowen Li, Colm O'Gorman, Thomas Cummins, Hao Tan, Deirdre Kilbane, Takeshi Higashiguchi, Noboru Yugami, Weihua Jiang, Akira Endo, Padraig Dunne, and Gerard D. O'Sullivan
  • 雑誌名: Proceedings of SPIE ページ: 8322-8322
• [学会発表] Terahertz Wave Frequency Upconversion by Rapid Plasma Creation (2013)
  • 著者名/発表者名: N. Yugami, T. Otsuka, Y. Sentoku, A. Nishida and R. Kodama
  • 学会等名: IEEE Pulsed Power & Plasma Science 2013
  • 発表場所: San Francisco
• [学会発表] Experimental observation of frequency up-conversion by flash ionization phenomena (2013)
  • 著者名/発表者名: N. Yugami, T. Otsuka, Y. Sentoku, A. Nishida, R. Kodama
  • 学会等名: 55th Annual Meeting of the American Physical Society Division of Plasma Physics
  • 発表場所: Denver
• [学会発表] THz wave frequency upconversion by rapid plasma creation (2012)
  • 著者名/発表者名: N.Yugami, T.Higashiguchi, T.Otsuka, Y.Sentoku, A.Nishida and R.Kodama
  • 学会等名: The 2nd International Symposium on Laser Interaction with Matter
  • 発表場所: 西安、中国
• [学会発表] THz wave up-frequency turning by rapidly plasma creation (2011)
  • 著者名/発表者名: Masahiro Nakata, Takeshi Higashiguchi, Noboru Yugami, Yasuhiko Sentoku, and Ryosuke Kodama
  • 学会等名: SPIE Optics and Photonics
  • 発表場所: San Diego
• [学会発表] Tunable terahertz radiation from an ultrashort-laser-pulse-induced discharge in biased air (2011)
  • 著者名/発表者名: Fuminori Suzuki, Takeshi Higashiguchi, Hiroaki Anno-Kashiwazaki, Noboru Yugami, Yasuhiko Sentoku, Ryosuke Kodama, and Patric Muggli
  • 学会等名: SPIE Optics and Photonics
  • 発表場所: San Diego
• [学会発表] Scaling of laser produced plasma UTA emission down to 3nm for next generation lithography and short wavelength imaging (2011)
  • 著者名/発表者名: Akira Endo, Takeshi Higashiguchi, Takamitsu Otsuka, Noboru Yugami, Padraig Dunne, Bowen Li, Thomas Cummins, Colm O'Gorman, Tony Donnelly , and Gerry O'Sullivan
  • 学会等名: SPIE Optics and Photonics
  • 発表場所: San Diego
• [学会発表] Frequency upshift via flash ionization phenomena using semiconductor plasma (2011)
  • 著者名/発表者名: Akinori Nishida, Masahiro Nakata, Takeshi Higashiguchi, Noboru Yugami, Yasuhiko Sentoku, and Ryosuke Kodama
  • 学会等名: SPIE Optics and Photonics
  • 発表場所: San Diego
• [学会発表] Frequency upshift via flash ionization phenomena using semiconductor plasma (2011)
  • 著者名/発表者名: Shohei Sakai, Jun Miyazawa, Takeshi Higashiguchi, and Noboru Yugami
  • 学会等名: The Seventh International Conference on Inertial Fusion Sciences and Applications (IFSA2011)
  • 発表場所: Bordeaux, France
• [学会発表] Generation of THz radiation from a periodic electrostatic field via a relativistic ionization front (2011)
  • 著者名/発表者名: Fuminori Suzuki, Shohei Ono, Hiroaki Anno-Kashiwazaki, Takeshi Higashiguchi, Noboru Yugami, Yasuhiko Sentoku, Ryosuke Kodama, Weihua Jiang, and Hiromitsu Terauchi
  • 学会等名: The 36th International Conference on Infrared, Millimeter and THz Waves (IRMMW-THz 2011)
  • 発表場所: Houston, USA
• [学会発表] THz wave up-frequency turning by rapidly plasma creation (2011)
  • 著者名/発表者名: Masahiro Nakata, Takamitsu Otsuka, Takafumi Oba, Fuminori Suzuki, Takeshi Higashiguchi, Noboru Yugami, Yasuhiko Sentoku, Ryosuke Kodama, and Akinori Nishida
  • 学会等名: The 36th International Conference on Infrared, Millimeter and THz Waves (IRMMW-THz 2011)
  • 発表場所: Houston, USA
• [学会発表] THz wave frequency upshift by rapidly plasma creation in semiconductor
  • 著者名/発表者名: N. Yugami, T. Otsuka, Y. Sentoku, A. Nishida and R. Kodama
  • 学会等名: HEDS2013
  • 発表場所: Yokohama
• [学会発表] Study on frequency up-conversion by plasma - Terahertz wave interaction
  • 著者名/発表者名: Akinori Nishida, Masahiro Nakata, Takeshi Higashiguchi, Noboru Yugami, Yasuhiko Sentoku and Ryosuke Kodam
  • 学会等名: HEDS2012
  • 発表場所: Yokohama
• [学会発表] Experimental Observation of Frequency Up-Conversion via Flash Ionization Phenomena
  • 著者名/発表者名: Noboru Yugami and Takeshi Higashiguchi
  • 学会等名: HEDS2012
  • 発表場所: Yokohama