Development of 203 GHz band Gyro BWO and accurate measurement of energy difference between two states of positronium

• Project/Area Number: 21360167
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: University of Fukui
• Principal Investigator: IDEHARA Toshitaka 福井大学, 遠赤外領域開発研究センター, 特任教授 (80020197)
• Co-Investigator(Kenkyū-buntansha): OGAWA Isamu 福井大学, 遠赤外領域開発研究センター, 教授 (90214014)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000); Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2010: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2009: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
• Keywords: ジャイロBWO / ポジトロニウム / エネルギー準位差 / 超微細構造 / ジャイロトロン装置 / Gyro BWO / 高出力テラヘルツ光 / Gro-BWO

Research Abstract

Development of 203 GHz band frequency tunable Gyro BWO and its application to the first experiment on accurate measurement of energy difference between two states of positronium under collaboration with International Center for Elementary Particle Physics of University of Tokyo. In order to solve the problem on the difference between theoretical and experimental results of HFS measurement, we have developed a new gyrotron device(Gyrotron FU CW GI) with a Gaussian beam output and made a planning of the experimental set-up for this study.

Research Products

• [Journal Article] Development of a compact sub-THz gyrotron FU CW CI for application to high power THz technologies (2012)
  • Author(s): Toshitaka Idehara, Jagadish C. Mudiganti, La Agusu, Tomohiro Kanemaki, Isamu Ogawa, Toshimichi Fujiwara, Yoh Matsuki, Keisuke Ueda
  • Journal Title: J. Infrared, Milli Terahz Waves Volume: 33 Pages: 724-744
  • Peer Reviewed
• [Journal Article] Development of a kW Level-200 GHz Gyrotron FU CW GI with an Internal Quasi-optical Mode Convertor (2012)
  • Author(s): Y. Tatematsu, Y. Yamaguchi, T. Idehara, T. Ozeki, R. Ikeda, T. Kanemaki, I. Ogawa, T. Saito
  • Journal Title: J. Infrared, Milli Terahz Waves Volume: 33 Pages: 292-305
  • Peer Reviewed
• [Journal Article] A spectrometer designed for 6. 7 and 14. 1 T DNP-enhanced solid-state MAS NMR using quasi-optical microwave transmission (2012)
  • Author(s): Kevin J. Pike, Thomas F. Kemp, Hiroki Takahashi, Robert Day, Andrew P. Howes, Eugeny V. Kryukov, James F. MacDonald, Alana E. C. Collis, David R. Bolton, Richard J. Wylde, Marcella Orwick, Kosuke Kosuga, Andrew J. Clark, Toshitaka Idehara, Anthony Watts, Graham M. Smith, Mark E. Newton, Ray Dupree, Mark E. Smith
  • Journal Title: Journal of Magnetic Resonance Volume: 215 Pages: 1-9
  • Peer Reviewed
• [Journal Article] Development of DNP-Enhanced High-Resolution Solid-State NMR System for the Characterization of the Surface Structure of Polymer Materials (2012)
  • Author(s): F. Horii, T. Idehara, Y. Fujii, I. Ogawa, A. Horii, G. Entzminger, F. D. Doty
  • Journal Title: J. Infrared, Milli Terahz Waves Volume: 33 Pages: 756-765
  • Peer Reviewed
• [Journal Article] Formation of Laminar Electron Flow for a High-Power Sub-THz Gyrotron (2012)
  • Author(s): Y. Yamaguchi, Y. Tatematsu, T. Saito, R. Ikeda, J. D. Mudiganti, I. Ogawa, T. Idehara
  • Journal Title: Plasma and Fusion Research Volume: 7
  • NAID: 130002059610
  • Peer Reviewed
• [Journal Article] Direct Measu rement of Positronium Hyper Fine Structure :<A New Horizon of Precision Spectroscopy Using Gyrotrons> (2012)
  • Author(s): S. Asai, T. Yamazaki, A. Miyazaki, T. Suehara, T. Namba, T. Kobayashi, H. Saito, T. Idehara, I. Ogawa, S. Sabchevski
  • Journal Title: J. Infrared, Milli Terahz Waves Volume: 33 Pages: 766-776
  • Peer Reviewed
• [Journal Article] Development and Applications of High Frequency Gyrotrons in FIR FU Covering the sub-THz to THz Range (2012)
  • Author(s): T. Idehara, S. P. Sabchevski
  • Journal Title: J. Infrared, Milli Terahz Waves Volume: 33 Pages: 667-694
  • Peer Reviewed
• [Journal Article] X-Ray Detected Magnetic Resonance at sub-THz frequencies using a high power gyrotron source (2012)
  • Author(s): A. Rogalev, J. Goulon, G. Goujon, F. Wilhelm, I. Ogawa, T. Idehara
  • Journal Title: J. Infrared, Milli Terahz Waves Volume: 33 Pages: 777-793
  • Peer Reviewed
• [Journal Article] Development of a compact sub-THz gyrotron FU CW CI for application to high power THz technologies (2012)
  • Author(s): Toshitaka Idehara, Jagadish C.Mudiganti, La Agusu, Tomohiro Kanemaki, Isamu Ogawa, Toshimichi Fujiwara, Yoh Matsuki, Keisuke Ueda
  • Journal Title: J.Infrared, Millimeter and Terahertz Waves Volume: 33 Issue: 7 Pages: 724-744
  • DOI: 10.1007/s10762-012-9911-0
  • Peer Reviewed
• [Journal Article] Application of Continuously Frequency-Tunable 0.4 THz Gyrotron to Dynamic Nuclear Polarization for 600 MHz Solid-State NMR (2012)
  • Author(s): Yoh Matsuki, Keisuke Ueda, Toshitaka Idehara, Ryosuke Ikeda, Kosuke Kosuga, Isamu Ogawa, Shinji Nakamura, Mitsuru Toda, Takahiro Anai, Toshimichi Fujiwara
  • Journal Title: J.Infrared, Millimeter and Terahertz Waves Volume: 33 Issue: 7 Pages: 745-755
  • DOI: 10.1007/s10762-012-9890-1
  • Peer Reviewed
• [Journal Article] Development and Applications of High-Frequency Gyrotrons in FIR FU Covering the sub-THz to THz Range (2012)
  • Author(s): Toshitaka Idehara, Svilen Petrov Sabchevski
  • Journal Title: J.Infrared, Millimeter and Terahertz Waves Volume: 33 Issue: 7 Pages: 667-694
  • DOI: 10.1007/s10762-011-9862-x
  • Peer Reviewed
• [Journal Article] New Experiment for the First Direct Measure ment of Positronium Hyperfine Splitting with sub-THz Light (2011)
  • Author(s): Akira Miyazaki, Takayuki Yamazaki, Taikan Suehara, Toshio Namba, Shoji Asai, Hruo Saito, Hruo Saito, Toshitaka Idehara, Isamu Ogawa, Yuichi Urushizaki, Svilen Sabchevski
  • Journal Title: Materials Science Forum Volume: Vol.666 Pages: 133-137
  • Peer Reviewed
• [Journal Article] Theoretical investigation of a high efficiency and broadband sub-terahertz gyrotron (2010)
  • Author(s): Nai-Ching Chen, Tsun-Hsu Chang, Ching-Pin. Yuan, Toshitaka Idehara, Isamu Ogawa
  • Journal Title: Journal of Applied Physics Volume: 107 Pages: 161501-161501
  • Peer Reviewed
• [Journal Article] Gyrotron FU CW VII for 300 MHz and 600 MHz DNP-NMR Spectroscopy (2010)
  • Author(s): T. Idehara, K. Kosuga, La Agusu, I. Ogawa, H. Takahashi, M. E. Smith and R. Dupree
  • Journal Title: J. Infrared, Milli Terahz Waves Volume: 31 Pages: 763-774
  • NAID: 120002439538
  • Peer Reviewed
• [Journal Article] Dynamic nuclear polarization experiments at 14. 1 T for solid-state NMR (2010)
  • Author(s): Yoh Matsuki, Toshitaka Idehara, Toshimichi Fujiwara, et al.
  • Journal Title: Physical Chemistry Chemical Physics Volume: 12 Pages: 5799-5803
  • Peer Reviewed
• [Journal Article] Continuously Frequency Tunable High Power Sub-THz Radiation Source (2010)
  • Author(s): Toshitaka Idehara, Kosuke Kosuga, Toshimichi Fujiwara, et al.
  • Journal Title: Gyrotron FU CW VI for 600 MHz DNP-NMR Spectroscopy Volume: 31 Pages: 775-790
  • Peer Reviewed
• [Journal Article] Electron Optical System of the Sub-terahertz Coaxial Gyrotron with Continuous Frequency Tuning (2010)
  • Author(s): V. Manuilov, M. Glyavin, T. Idehara, et. al.
  • Journal Title: J. Infrared, Milli Terahz Waves Volume: 31 Pages: 912-918
  • Peer Reviewed
• [Journal Article] Design of a Compact Sub-Terahertz Gyrotron for Spectroscopic Applications (2010)
  • Author(s): Svilen Petrov Sabchevski, Toshitaka Idehara
  • Journal Title: J. Infrared, Milli Terahz Waves Volume: 31 Pages: 934-948
  • Peer Reviewed
• [Journal Article] Fre quency Tunable Gyrotron FU CW VA for Me asuring Hyperfine Split of Positronium (2010)
  • Author(s): Olgierd Dumbrajs, Toshitaka Idehara
  • Journal Title: J. Infrared, Milli Terahz Waves Volume: 31 Pages: 1265-1270
  • Peer Reviewed
• [Journal Article] Detection Properties of Thin-Film Slot-Antenna-Coupled GaAS Schottky Barrier Diodes (2010)
  • Author(s): Kosuke Hayashl, Toshitaka Idehara, Yoshizumi Yasuoka, et al.
  • Journal Title: Japancse Journal of Applied Physlcs Volume: 48 Pages: 81103-81103
  • NAID: 40016704633
  • Peer Reviewed
• [Journal Article] Measurement of Radiation Frequency of Gyrotron by GaAs Schottky Barrier Diodes Coupled with Thin-Fllm Slot Antenna (2010)
  • Author(s): Kosuke Hayashi, Toshitaka Idehara, Yoshizumi Yasuoka, et al.
  • Journal Title: Japanese Journa of ApPlied Physics Volume: 49 Pages: 38002-38002
  • Peer Reviewed
• [Journal Article] Theoretical investigation of a high efHciency and broadband subterahertz gyrotron (2010)
  • Author(s): Nai-Ching Chen, Tsun-Hsu Chang, Tbshitaka Idehara, et al.
  • Journal Title: Applied Physics Letters Volume: 96 Pages: 161501-161501
  • Peer Reviewed
• [Journal Article] Dynamic nuclear polarization experiments at 14.1 T for solid-state NMR (2010)
  • Author(s): Yoh Matsuki, Toshitaka Idehara, Toshimichi Fuiiwara, et al.
  • Journal Title: Physical Chemistry Chemical Physics Volume: 12 Pages: 5799-5803
  • Peer Reviewed
• [Journal Article] Development of terahertz gyrotrons and their application to CTS on LHD (2010)
  • Author(s): T.Saito,Y.Tatematsu, T.Idehara, et al.
  • Journal Title: Journal of Physics : Conference Series Volume: 227 Pages: 12013-12013
  • Peer Reviewed
• [Journal Article] Gyrotron FU CW VII for 300 MHz and 600 MHz DNP-NMR Spectroscopy (2010)
  • Author(s): T.Idehara, K. Kosuga, R. Dupree, et al.
  • Journal Title: Journal of Infrared, Millimeter and Terahertz Waves Volume: 31 Pages: 763-774
  • NAID: 120002439538
  • Peer Reviewed
• [Journal Article] Continuously Frequency Tunable High Power Sub-THz Radiation Source-Gyrotron FU CW VI for 600 MHz DNP-NMR Spectroscopy (2010)
  • Author(s): Toshitaka ldehara, KosuKe Kosuga, Foshimichi Fuiiwara, et al.
  • Journal Title: Journal of Infrared, Millimeter and Terahertz Waves Volume: 31 Pages: 775-790
  • Peer Reviewed
• [Journal Article] Electron Optical System of the Sub-terahertz Coaxial Ciyrotron with Continuous F requency Tuning (2010)
  • Author(s): V.Manuilov, M.Glyavin, T.Idehara, et. al.
  • Journal Title: Journal of Infrared, Millimeter and Terahertz Waves Volume: 31 Pages: 912-918
  • Peer Reviewed
• [Journal Article] Design of a Compact Sub-Terahertz Gyrotron for Spectroscopic Applications (2010)
  • Author(s): Svilen Petrov Sabchevski, Toshitaka Idehara
  • Journal Title: Journal of Infrared, Millimeter and Terahertz Waves Volume: 31 Pages: 934-948
  • Peer Reviewed
• [Journal Article] Design of an Optimized Resonant Cavity for a Compact Sub-Terahertz Gyrotron (2010)
  • Author(s): Olgierd Dumbrajs, Toshitaka Idehara, Svilen Sabchevski, et al.
  • Journal Title: Journal of Infrared, Millimeter and Terahertz Waves Volume: 31 Pages: 1115-1125
  • Peer Reviewed
• [Journal Article] Frequency Tunable Gyrotron FU CW VA for Measuring Hyperfine Split of Positr onium (2010)
  • Author(s): Olgierd Dumbrajs, Toshitaka Idehara
  • Journal Title: Journal of Infrared, Millimeter and Terahertz Waves Volume: 31 Pages: 1265-1270
  • Peer Reviewed
• [Journal Article] New Experiment for the First Direct Measurement of Positronium Hyperfine Split ting with sub-THz Light (2010)
  • Author(s): Akira Miyazaki, Takayuki Yamazaki, Taikan Suehara, Shoji Asai, Toshita ka Idehara, et al.
  • Journal Title: Materials Science Forum Volume: 666 Pages: 133-137
  • Peer Reviewed
• [Journal Article] Theoretical investigation of a high efficiency and broadband sub-terahertz gyrotron (2010)
  • Author(s): Nai-Ching Chen, Tsun-Hsu Chang, Ching-Pin Yuan, Toshitaka Idehara, Isamu Ogawa
  • Journal Title: Journal of Applied Physics 107
  • Peer Reviewed
• [Journal Article] Measurement of Radiation Frequency of Gyrotron by GaAs Schottky Barrier Diodes Coupled with Thin-Film Slot Antenna (2010)
  • Author(s): Kosuke Hayashi, Takashi Furuya, Takashi Tachiki, Takashi Uchida, Toshitaka Idehara, Yoshizumi Yasuoka
  • Journal Title: Japanese Journal of Applied Physics 49 Pages: 38002-38002
  • NAID: 210000068050
  • Peer Reviewed
• [Journal Article] Gyrotron FU CW VII for 300MHz and 600MHz DNP-NMR Spectroscopy (2010)
  • Author(s): T.Idehara, K.Kosuga, La Agusu, I.Ogawa, H.Takahashi, M.E.Smith, R.Dupree
  • Journal Title: J.Infrared, Milli Terahz Waves (Published online)
  • NAID: 120002439538
  • Peer Reviewed
• [Journal Article] Studies of Continuous-Wave Submill imeter-Wave Gyrotrons for Spectroscopy and Diagnostics of Various Media (2009)
  • Author(s): M. Yu Glyavin, T. Idehara, N. Manuilov, T. Saito
  • Journal Title: Radiophysics and Quantum Electronics Volume: 52 Pages: 500-510
  • Peer Reviewed
• [Journal Article] Frequency tunable gyrotron using backward-wave components (2009)
  • Author(s): Tsun-Hsu Chang, Toshitaka Idehara, Isamu Ogawa, La Agusu, and S. Kobayashi
  • Journal Title: Journal of Applied Physics Volume: 105 Pages: 63304-63304
  • Peer Reviewed
• [Journal Article] Studies of Continuous-Wave Submillimeter-Wave Gyrotrons for Spectroscopy and Diagnostics of Various Media (2009)
  • Author(s): M.Yu Glyavin, T.Idehara, N.Manuilov, T.Saito
  • Journal Title: Radiophysics and Quantum Electronics 52 Pages: 500-510
  • Peer Reviewed
• [Journal Article] Frequency tunable gyrotron using backward-wave components (2009)
  • Author(s): Tsun-Hsu Chang, Toshitaka Idehara, Isamu Ogawa, La Agusu, S.Kobayashi
  • Journal Title: Journal of Applied Physics 105 Pages: 63304-63304
  • Peer Reviewed
• [Presentation] Review paper : Development and applicastions of high frequency harmonic gyrotrons-Cooperative research works with institutions in the world (2012)
  • Author(s): T.Idehara
  • Organizer: The 4th International Workshop on Far-Infrared Technologies 2012 (IW-FIRT 2012)
  • Place of Presentation: Fukui, Japan
  • Year and Date: 2012-03-07
• [Presentation] High power THz radiation sources developed in FIR FU and their applications (2011)
  • Author(s): Toshitaka Idehara
  • Organizer: ROC Centennial Workshop on THz Science and Technology
  • Place of Presentation: Hsinchu, Tauwan
  • Year and Date: 2011-12-12
• [Presentation] CAD of Magnetron Injection Guns for Sub-Terahertz Gyrotrons (2011)
  • Author(s): J. C. Muduganti, T. Idehara, Y. Tatematsu, T. Saito, I. Ogawa
  • Organizer: International Photonics Conference 2011(IPC 2011)
  • Place of Presentation: Tainan, Tauwan
  • Year and Date: 2011-12-09
• [Presentation] A Sub-Terahertz Wave Compact Gyrotron for Spectroscopic Application (2011)
  • Author(s): J. C. Mudiganti, T. Idehara, Y. Tatematsu, T. Saito, I. Ogawa
  • Organizer: International Photonics Conference 2011(IPC 2011)
  • Place of Presentation: Tainan, Tauwan
  • Year and Date: 2011-12-09
• [Presentation] High power THz technologies using THz gyrotrons as radiation sources (2011)
  • Author(s): Toshitaka Idehara
  • Organizer: International Photonics Conference 2011(IPC 2011)
  • Place of Presentation: Tainan, Taiwan
  • Year and Date: 2011-12-09
• [Presentation] High power THz technology using high frequency gyrotrons (2010)
  • Author(s): Toshitaka Idehara
  • Organizer: The 3rd Korea-Japan Joint Workshop on THz Technology
  • Place of Presentation: Busan, Korea
  • Year and Date: 2010-12-17
• [Presentation] High power THz technology using high frequency gyrotrons (2010)
  • Author(s): Toshitaka Idehara
  • Organizer: The 3rd Korea-Japan Joint Wbrkshop on TH zTbchnology
  • Place of Presentation: Rusan, Korea
  • Year and Date: 2010-12-17
• [Presentation] 高強度サブテラヘルツビーム源の開発と応用展開 (2010)
  • Author(s): 出原敏孝
  • Organizer: 第5回「量子ビーム融合化利用研究」に関する先導的研第究委員会・専門委員会合同委員会(JSPS)
  • Place of Presentation: 東京
  • Year and Date: 2010-12-15
• [Presentation] 動的核分極(DNP)法を使った高磁場高感度固体NMR (2010)
  • Author(s): 松木陽, 高橋大樹, 植田啓介, I松出原敏孝, 小川勇, 中村新治, 出戸田充, 穴井孝弘, 阿久津秀戸雄, 藤原敏道
  • Organizer: 日本核磁気共鳴学会第49回NMR討論会
  • Place of Presentation: 東京
  • Year and Date: 2010-11-16
• [Presentation] THz Gyrotron FU CW Series for high power THz technologies (2010)
  • Author(s): T. Idehara, T. Saito, I. Ogawa, S. Mitsudo, Y. Tatematsu, R. Ikeda, J. Mudiganti, K. Kosuga
  • Organizer: The 35th International Conference on Infrared, Millimeter and THz Waves
  • Place of Presentation: Rome, Italy
  • Year and Date: 2010-09-09
• [Presentation] Series for high power THz technologies,"(Invited Key n ote) (2010)
  • Author(s): T.Idehara, T.Saito, I.Ogawa, S.Mitsudo, Y.Tatematsu, R.Ikeda, J.Mudieanti.K.Kosuea
  • Organizer: The 35th International Conference on Infrared, Millimeter and THz Waves
  • Place of Presentation: Rome, ltaly
  • Year and Date: 2010-09-09
• [Presentation] Development of high frequency gyrotrons and application to high power THz technologies (2010)
  • Author(s): T. Idehara, T. Saito, I. Ogawa, S. Mitsudo, Y. Tatematsu
  • Organizer: International Symposium "Terahertz Radiation : Genreration and Application"
  • Place of Presentation: Novosibirsk, Russia
  • Year and Date: 2010-07-28
• [Presentation] Development of high frequency gyrotrons and application to high power THz technologies (2010)
  • Author(s): T.Idehara, T.Saito, I.Ogawa, S.Mitsudo, Y.Tatematsu
  • Organizer: International Symposium "Terahertz Radiation: Genreration and Application"
  • Place of Presentation: Novosibirsk, Russia
  • Year and Date: 2010-07-28
• [Presentation] HIGH POWER THZ TECH NOLOGIES OPENED BY HIGH POWER RADIATION SOURCES-GYROTRONS (2010)
  • Author(s): T. Idehara, T. Saito, I. Ogawa, S. Mitsudo, Y. Tatematsu
  • Organizer: 2010 International Kharkov Symposium on Physics and Engineering of Micorowaves, Millimeter and Submillimeter Waves
  • Place of Presentation: Kharkov, Ukraine
  • Year and Date: 2010-06-22
• [Presentation] HIGH POWER THZ TECHNOLOGIES OPENED BY HIGH POWER RADIATIO N SOURCES - GYROTRONS (2010)
  • Author(s): T.Idehara, T.Saito, I.Ogawa, S.Mitsudo, Y.Tatematsu
  • Organizer: 2010 International Kharkov Symposium on Physics and Engineering of Micorowaves, Millimeter and Submillimeter Waves
  • Place of Presentation: Kharkov, Ukraine
  • Year and Date: 2010-06-22
• [Presentation] Svelin Sabchevski, Measurement of hyperfine split of positronium atoms using sub-THz gyrotron (2010)
  • Author(s): S. Asai, T. Suehara, G. Akimoto, A. Miyazaki, T. Yamazaki, T. Namba, T. Kobayashi, H. Saito, T. Idehara, I. Ogawa, Y. Urushizaki
  • Organizer: The 3rd International Workshop on Far Infrared Technologies 2010
  • Place of Presentation: Fukui, Japan
  • Year and Date: 2010-03-16
• [Presentation] Measurement of hyperfine split of positronium atoms using sub-THz gyrotron (2010)
  • Author(s): S.Asai, T.Suehara, G.Akimoto, A.Miyazaki, T.Yamazaki, T.Namba, T.Kobayashi, H.Saito, T.Idehara, I.Ogawa, Y.Urushizaki, Svelin Sabchevski
  • Organizer: The 3rd International Workshop on Far Infrared Technologies 2010
  • Place of Presentation: 福井大学
  • Year and Date: 2010-03-15
• [Presentation] A DNP-enhanced Solid-State MAS NMR Spectrometer designed for operation at 6. 7 and 14. 1 T using quasi-optical microwave transmission (2010)
  • Author(s): R. Dupree, K. J. Pike, T. H. Kemp, H. Takahashi, R. Day, A. P. Howes, E. V. Kryukov, J. F. MacDonald, A. E. C. Collis, D. V. Bolton, R. J. Wylde, M. Orwick, K. Kosuga, A. J. Klark, T. Idehara, A. Watts, G. M. Smith, M. E. Newton, M. E. Smith
  • Organizer: The 4th International Workshop on Far Infrared technologies
  • Place of Presentation: Fukui, Japan
  • Year and Date: 2010-03-08
• [Presentation] Application of Continuously Frequency-Tunable Sub-MMW Gyrotron to Dynamic Nuclear Polarization for NMR Spectroscopy at 14. 1 T and 30K (2010)
  • Author(s): T. Fujiwara, Y. Matsui, K. Ueda, T. Idehara, R. Ikeda, K. Kosuga, I. Ogawa, S. Nakamura, M. Toda, T. Anai
  • Organizer: The 4th International Workshop on Far Infrared technologies
  • Place of Presentation: Fukui, Japan
  • Year and Date: 2010-03-08
• [Presentation] Direct Measurement of the Hyperfine Structure of the Ground State Positronium using High Power Sub-THz Radiation (2010)
  • Author(s): T. Yamazaki, A. Miyazaki, T. Suehara, T. Namba, S. Asai, T. Kobayashi, H. Saito, T. Idehara, I. Ogawa, S. Sabchevski
  • Organizer: The 4th International Workshop on Far Infrared technologies
  • Place of Presentation: Fukui, Japan
  • Year and Date: 2010-03-08
• [Presentation] Physics of Bloch oscillation in semiconductor supperlattices under intense sub-terahertz radiation from a gyrotron (2010)
  • Author(s): K. Hirakawa, Y. Sakasegawa, H. Tanaka, T. Idehara
  • Organizer: The 4th International Workshop on Far Infrared technologies
  • Place of Presentation: Fukui, Japan
  • Year and Date: 2010-03-08
• [Presentation] A table-top 200 GHz gyrotron FU CW CII with an internal mode converter (2010)
  • Author(s): R. Ikeda, Y. Tatematsu, T. Idehara, Y. Yamaguchi, J. C. Mudiganti, T. Ozeki, T. Kanemaki, I. Ogawa, T. Saito
  • Organizer: The 4th International Workshop on Far Infrared technologies
  • Place of Presentation: Fukui, Japan
  • Year and Date: 2010-03-08
• [Presentation] Development of gyrotrons with an internal mode convertor, Gyrotron FU CW G-series (2010)
  • Author(s): Y. Tatematsu, Y. Yamaguchi, T. Idehara, T. Ozeki, T. Kawase, H. Kato, J. Aiba, R. Ikeda, T. Kanemaki, I. Ogawa, T. Saito
  • Organizer: The 4th International Workshop on Far Infrared technologies
  • Place of Presentation: Fukui, Japan
  • Year and Date: 2010-03-08
• [Presentation] Development and applications of high frequency harmonic gyrotrons-Cooperative research works with institutions in the world- (2010)
  • Author(s): Toshitaka Idehara
  • Organizer: The 4th International Workshop on Far Infrared technologies
  • Place of Presentation: Fukui, Japan
  • Year and Date: 2010-03-07
• [Remarks] Webページアドレス
  • URL: http://fir.u-fukui.ac.jp/
• [Patent(Industrial Property Rights)] 電磁波出力測定装置 (2009)
  • Inventor(s): 出原敏孝, 小川勇, 光藤誠太郎
  • Industrial Property Rights Holder: 福井大学
  • Acquisition Date: 2009-11-13