THz near-field probing by using metal wire waveguides

• Project/Area Number: 26790055
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Optical engineering, Photon science
• Research Institution: The University of Tokyo
• Principal Investigator: Konishi Kuniaki 東京大学, 大学院理学系研究科(理学部), 助教 (60543072)
• Research Collaborator: TAMARU Hiroharu ; KANDA Natsuki ; NEMOTO Natsuki
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: テラヘルツ / 3Dプリンター / 導波路 / 近接場 / ベクトルビーム

Outline of Final Research Achievements

The object of this study is the development of THz-wave manipulation by controlling shape of THz maveguides fabricated by metal wires and of novel THz near-field probing technique. We developed a new method for high-power terahertz vector beam generation which can enlarge the intensity of THz wave which is coupled to a THz waveguide. We also improved our 3D printer for the development of THz waveguides. We succeeded to make hollow waveguides, by using our 3D printing and metal plating, in which THz wave which frequency is higher than 1 THz can propagate at the first time.

Research Products

• [Int'l Joint Research] Imperial College London/National Physical Laboratory(英国)
• [Journal Article] 3D printed 1.1 THz waveguides (2017)
  • Author(s): W.J. Otter, N.M. Ridler, H. Yasukochi, K. Soeda, K. Konishi, J. Yumoto, M. Kuwata-Gonokami, S. Lucyszyn
  • Journal Title: Electronics Letters Volume: 53 Issue: 7 Pages: 471-473
  • DOI: 10.1049/el.2016.4662
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] High-sensitivity and broadband, real-time terahertz camera incorporating micro-bolometer array with resonant cavity structure (2016)
  • Author(s): N. Nemoto, N. Kanda, R. Imai, K. Konishi, M. Miyoshi, S. Kurashina, T. Sasaki, N. Oda, and M. Kuwata-Gonokami
  • Journal Title: IEEE Trans. THz Sci. Technol. Volume: 6 Issue: 2 Pages: 175-182
  • DOI: 10.1109/tthz.2015.2508010
  • Peer Reviewed / Open Access
• [Journal Article] Enantiomeric switching of chiral metamaterial for terahertz polarization modulation employing vertically deformable MEMS spirals (2015)
  • Author(s): 3.T. Kan, A. Isozaki, N. Kanda, N. Nemoto, K. Konishi,H. Takahashi, M. Kuwata-Gonokami, K. Matsumoto and I. Shimoyama
  • Journal Title: Nature Communications Volume: 6 Issue: 1 Pages: 8442-8442
  • DOI: 10.1038/ncomms9422
  • Peer Reviewed / Open Access
• [Journal Article] Highly precise and accurate terahertz polarization measurements based on electro-optic sampling with polarization modulation of probe pulses (2014)
  • Author(s): N. Nemoto, T. Higuchi, N. Kanda, K. Konishi, M. Kuwata-Gonokami
  • Journal Title: Optics Express Volume: 22 Issue: 15 Pages: 17915-17929
  • DOI: 10.1364/oe.22.017915
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] Thick THz Metamaterials fabricated by 3D printer for THz High-Pass Filter Application (2017)
  • Author(s): Kuniaki Konishi, Hiroyuki Yasukochi, Kentaro Soeda, Yuma Takano, Hiroaki Niwa, Junji Yumoto, and Makoto Kuwata- Gonokami
  • Organizer: CLEO/Europe-EQEC 2017
  • Place of Presentation: Munich (Germany)
  • Year and Date: 2017-06-25
  • Int'l Joint Research
• [Presentation] Metamaterial-based circular polarization control (2016)
  • Author(s): K. Konishi
  • Organizer: The 2nd STEPS Symposium on Photon Science
  • Place of Presentation: Peterhof, Russia
  • Year and Date: 2016-03-14
  • Int'l Joint Research / Invited
• [Presentation] Circular Polarization Control Using Metallic Artificial Structures (2015)
  • Author(s): K. Konishi
  • Organizer: The 76th JSAP Autumn Meeting 2015, JSAP-OSA Joint Symposia
  • Place of Presentation: Nagoya, Japan
  • Year and Date: 2015-09-13
  • Int'l Joint Research / Invited
• [Presentation] Circular Polarization Effects in Metamaterials (2015)
  • Author(s): K. Konishi and M. Kuwata-Gonokami
  • Organizer: The 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (Metamaterials’2015)
  • Place of Presentation: Oxford, UK
  • Year and Date: 2015-09-07
  • Int'l Joint Research / Invited
• [Presentation] Terahertz polarization control with symmetry-controlled materials and metamaterials (2015)
  • Author(s): K. Konishi and M. Kuwata-Gonokami
  • Organizer: Optical Terahertz Science and Technology (OTST) 2015
  • Place of Presentation: San Diego, USA
  • Year and Date: 2015-03-09 – 2015-03-12
  • Invited