Generation of Intense Terahertz Radiation from DARC by using Plasma Filament

• Project/Area Number: 15K05361
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plasma science
• Research Institution: Utsunomiya University
• Principal Investigator: Yugami Noboru 宇都宮大学, 工学(系)研究科(研究院), 教授 (60220521)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: テラヘルツ / レーザー / プラズマ / 電磁波

Outline of Final Research Achievements

The operation of the DC-to-AC radiation converter (DARC) in the sub-THz region is confirmed. A relativistic ionization front which is created by a loosely focused of Ti:sapphire laser pulse propagating through a capacitor array of period d = 0.2 cm with a gas pressure between 1 and 200 Pa. The maximum frequency of the generated emission is determined to be in the range of 0.1 to 0.3 THz by using several diodes.; The maximum frequency range observed is up to Y band (0.22-0.33THz), which is the highest frequency reported using the DARC with gas (to our knowledge). Theoretically, higher frequency can also be obtained with higher electron density. The maximum signal voltage as a function of the applied voltage. The maximum signal voltages increase with the increasing applied voltage.

Research Products

• [Journal Article] Generation of sub-terahertz radiation using the DC-to-AC radiation converter (2017)
  • Author(s): Takamitsu P. Otsuka, Takeharu Hommyo, Yusuke Hyuga, Noboru Yugami, and Ryosuke Kodama
  • Journal Title: Japanese Journal of Applied Physics Volume: 56 Issue: 11 Pages: 110308-110308
  • DOI: 10.7567/jjap.56.110308
  • NAID: 210000148407
  • Peer Reviewed
• [Journal Article] Note: Single-shot time-domain spectroscopy and spatial profiling of terahertz pulses from intense laser systems (2016)
  • Author(s): T. J. Zhang, Z. Jin, S. Wakamatsu, T. Hosokai, N. Yugami, and R. Kodama
  • Journal Title: Rev. Sci. Instrum Volume: 87 Issue: 6 Pages: 066101-066101
  • DOI: 10.1063/1.4953116
  • Peer Reviewed
• [Journal Article] Highly efficient terahertz radiation from a thin foil irradiated by a high-contrast laser pulse (2016)
  • Author(s): Z. Jin, H. B. Zhuo, T. Nakazawa, J. H. Shin, S. Wakamatsu, N. Yugami, T. Hosokai, D. B. Zou, M. Y. Yu, Z. M. Sheng, and R. Kodama
  • Journal Title: Phys.Rev.E Volume: 94 Issue: 3 Pages: 033206-033206
  • DOI: 10.1103/physreve.94.033206
  • Peer Reviewed
• [Presentation] Terahertz Radiation from Laser Created Plasma by Applying a Transverse Static Electric Field (2016)
  • Author(s): Takuya Fukuda, Koji Katahira, Noboru Yugami, Yasuhiko Sentoku, Hideo Nagatomo
  • Organizer: 58th Annual Meeting of the APS Division Plasma Physics
  • Place of Presentation: San Jose
  • Year and Date: 2016-10-31
  • Int'l Joint Research
• [Presentation] 静電場印加プラズマからのテラヘルツ電磁波放射の解明 (2016)
  • Author(s): 福田琢也, 片平光司, 湯上登
  • Organizer: 日本物理学会
  • Place of Presentation: 金沢
  • Year and Date: 2016-09-13
• [Presentation] Conical Forward THz Emission From Ultra- short Pulse Laser Created Plasma (2016)
  • Author(s): Tadashi Shimizu, M.Hideta, Y.Sentoku and N. Yugami,
  • Organizer: HEDS2016
  • Place of Presentation: 横浜
  • Year and Date: 2016-05-17
  • Int'l Joint Research
• [Presentation] Terahertz Radiation from Laser-Induced Plasma by Applying a Transverse Static Electric Field (2016)
  • Author(s): Takuya Fukuda, K. Katahira and N. Yugami
  • Organizer: HEDS2016
  • Place of Presentation: 横浜
  • Year and Date: 2016-05-17
  • Int'l Joint Research
• [Presentation] Clarification of THz Electromagnetic Radiation from the Laser Produced Plasma (2015)
  • Author(s): Masataka Hideta, Yusuke Hyuga, Yasuhiko Sentoku and Noboru Yugami
  • Organizer: APS-DPP
  • Place of Presentation: Savannah, Georgia, USA
  • Year and Date: 2015-11-16
  • Int'l Joint Research
• [Presentation] Characterization sub-THz Radiation from DC to AC Radiation Convderter(DARC) (2015)
  • Author(s): Yusuke Hyuga, Yoshihiro TAKADA, Takamitsu Otsuka and Noboru Yugami
  • Organizer: APS-DPP
  • Place of Presentation: Savannah, Georgia, USA
  • Year and Date: 2015-11-16
• [Presentation] Ultra-intense Laser-Driven Target Normal Sheath Radiation In The Terahertz Region (2015)
  • Author(s): Zhan Jin; HongBin Zhuo; Junghun Shin; Noburo Yugami; MingYang Yu; ZhengMing Sheng; Ryosuke Kodama
  • Organizer: IRMMW-THz 2015
  • Place of Presentation: Hong Kong
  • Year and Date: 2015-08-24
  • Int'l Joint Research
• [Presentation] Characterization of THz radiation from Lasesr-Produced Plasma via 2D PIC Simulation (2015)
  • Author(s): M. Hideta, Y. Hyuga, Y. Sentoku and N. Yugami,
  • Organizer: HEDS2015
  • Place of Presentation: Yokohama
  • Year and Date: 2015-04-24
  • Int'l Joint Research
• [Presentation] Generation fo sub-Terahertz radiation using the dc to ac radiation converter (2015)
  • Author(s): Y.Hyuga, M.Hideta, T.Hommyo, T.Otsuka and N. Yugami
  • Organizer: HEDS2015
  • Place of Presentation: Yokohama
  • Year and Date: 2015-04-24
  • Int'l Joint Research
• [Presentation] A Single-shot Terahertz Time-domain Spectroscopy with Spatial Resolution for Intense Laser System (2015)
  • Author(s): Tianju Zhang, Zhan Jin, Satoshi Wakamatsu, Noboru Yugami and Ryosuke Kodama
  • Organizer: HEDS2015
  • Place of Presentation: Yokohama
  • Year and Date: 2015-04-24
  • Int'l Joint Research
• [Presentation] Tunable Terahertz Generation by Coherent Cherenkov Radiation in Coaxial Waveguide (2015)
  • Author(s): S. Wakamatsu, Z. Jin, N. Yugami and R. Kodama,
  • Organizer: HEDS2015
  • Place of Presentation: Yokohama
  • Year and Date: 2015-04-24
  • Int'l Joint Research