Development of integrated terahertz-wave detector for real time polarization measurement

• Project/Area Number: 16K06312
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Kitasato University
• Principal Investigator: Ito Hiroshi 北里大学, 一般教育部, 教授 (50525384)
• Research Collaborator: YAMAMOTO hiroshi
• Project Period (FY): 2016-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: テラヘルツ波 / 検出器 / 平面アンテナ / 偏波計測 / エリプソメトリー / 電子デバイス・機器

Outline of Final Research Achievements

An integrated terahertz-wave detector implementing four Schottky barrier diodes was developed for realizing real-time polarization measurement of terahertz waves without using moving parts. Configuration of integrated antennas was optimized analytically and experimentally. Fabricated antenna-integrated detector exhibited linearly polarized signal detection characteristics with a polarization factor close to unity. Using the fabricated detector module with the analysis method based on the Stokes parameters, terahertz-wave ellipsometry of purified water was accomplished and its complex relative dielectric constants were successfully revealed.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発したテラヘルツ波検出器は、従来部品では実現が困難であった実時間での偏波計測を可能とし、ダイナミックな現象の解明にも寄与できることから、様々な計測技術の進展に重要な役割を果たすものと考えられる。また、このような可動部が無く小型・軽量で低コスト化が可能なテラヘルツ波計測機器の開発がさらに進めば、今まで利用が困難であった対象物への適用も可能となり、テラヘルツ波の利用範囲拡大にも貢献できるものと考えられる。

Research Products

• [Journal Article] Photonic Terahertz-Wave Generation Using Slot-Antenna-Integrated Uni-Traveling-Carrier Photodiodes (2017)
  • Author(s): H. Ito and T. Ishibashi
  • Journal Title: IEEE Journal of Selected Topics in Quantum Electronics Volume: 23 Issue: 4 Pages: 1-7
  • DOI: 10.1109/jstqe.2017.2657678
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Terahertz-wave generation using resonant-antenna-integrated uni-traveling-carrier photodiodes (2017)
  • Author(s): H. Ito and T. Ishibashi
  • Journal Title: Proceedings of SPIE Volume: 10209 Pages: 1-9
  • DOI: 10.1117/12.2262764
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Terahertz-Wave Generation Using Resonant-Antenna-Integrated Uni-Traveling-Carrier Photodiodes (2017)
  • Author(s): H. Ito and T. Ishibashi
  • Organizer: SPIE Defense + Commercial Sensing
  • Int'l Joint Research / Invited
• [Presentation] Photonic THz-Wave Generation by UTC-PD and Its Related Device (2016)
  • Author(s): H. Ito
  • Organizer: Progress In Electromagnetics Research Symposium
  • Place of Presentation: Shanghai, China
  • Year and Date: 2016-08-10
  • Int'l Joint Research / Invited
• [Presentation] 半導体ヘテロ接合ダイオードを用いたＣＷテラヘルツ波の発生と検出 (2016)
  • Author(s): 伊藤 弘、石橋忠夫
  • Organizer: テラヘルツテクノロジーフォーラム第14回講演会
  • Place of Presentation: 東京大学生産技術研究所（東京都目黒区）
  • Year and Date: 2016-05-27
  • Invited
• [Presentation] Terahertz-Wave Emission and Detection by InP-Based Heterostructure Diodes (2016)
  • Author(s): H. Ito
  • Organizer: EMN Meeting on Terahertz
  • Place of Presentation: San Sebastian, Spain
  • Year and Date: 2016-05-15
  • Int'l Joint Research / Invited