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Creation of free-space electron-traveling photodiodes and realization of terahertz-wave pulsed beams

Research Project

Project/Area Number 20H00253
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 21:Electrical and electronic engineering and related fields
Research InstitutionKyushu University

Principal Investigator

Kato Kazutoshi  九州大学, システム情報科学研究院, 教授 (10563827)

Co-Investigator(Kenkyū-buntansha) 永妻 忠夫  大阪大学, 大学院基礎工学研究科, 教授 (00452417)
硴塚 孝明  早稲田大学, 理工学術院(情報生産システム研究科・センター), 准教授 (20522345)
金谷 晴一  九州大学, システム情報科学研究院, 教授 (40271077)
前田 辰郎  国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 研究主幹 (40357984)
高畑 清人  早稲田大学, 理工学術院(情報生産システム研究科・センター), 准教授 (40780797)
久保木 猛  九州大学, システム情報科学研究院, 助教 (50756236)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥45,240,000 (Direct Cost: ¥34,800,000、Indirect Cost: ¥10,440,000)
Fiscal Year 2022: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2021: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Fiscal Year 2020: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Keywords光電変換デバイス / テラヘルツ波 / 真空フォトダイオード / パルスビーム / アレー集積 / フォトミキシング / テラヘルツ波発生 / 真空デバイス / 空間電子走行 / パルス波 / フォトダイオード
Outline of Research at the Start

研究代表者らが開拓してきた、レーザ光のコヒーレンス性を用いたフォトミキシングによるテラヘルツ波発生・制御技術を新展開させるため、革新的デバイスを実現し、従来困難であった時間的かつ空間的なエネルギーの集中を可能とする「テラヘルツ波パルスビーム」の基盤技術大系を確立する。具体的には、半導体内で光電子を走行させる従来手法から脱却し、自由空間での電子走行により既存技術よりも100倍以上高出力な、新規概念のデバイスを創生する。そして本デバイスだからこそ実現可能となる高出力テラヘルツ波パルスビームを用いた500GHz~1THz級の超高速無線通信やテラヘルツ波深層イメージング等の新産業開拓可能性を探索する。

Outline of Final Research Achievements

A photoelectric conversion device structure was formed in which electrons travel in free space. The change in the applied voltage-photocurrent characteristic with and without optical input confirmed that the electrons were traveling in space. A device consisting of 8 x 17 = 136 elements of 0.25 mm square connected to an antenna was created, giving the prospect of 100-array scale integration technology. Using conventional photodiodes, we established terahertz-wave beam generation using an array and a new pulsed technology using a wavelength-tunable laser. As an application system development, we extended the depth of field of a terahertz-wave imaging scanner and demonstrated the world's highest performance with a scan frequency of 250 Hz, a moving stage speed of 500 mm/sec, and a depth of field of 170 mm.

Academic Significance and Societal Importance of the Research Achievements

光電子を半導体内ではなく自由空間を走行させる新たなデバイスの概念を提示し、それを実現するためのデバイス構造の提案および作製を実現したこと、このデバイスの動作を実証する特性が得られたこと、また波長可変レーザを用いた新たなパテラヘルツルス波生成法の提案と実証を行ったことが学術的意義である。
社会ニーズを調査し、本技術の応用として、テラヘルツ波イメージングスキャナの被写界深度の拡大を行い世界最高性能を実証したことで、テラヘルツ波の応用分野の可能性を一気に広げたことが社会的意義である。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Comments on the Screening Results   Annual Research Report
  • Research Products

    (48 results)

All 2023 2022 2021 2020

All Journal Article (12 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 12 results,  Open Access: 3 results) Presentation (36 results) (of which Int'l Joint Research: 24 results,  Invited: 7 results)

  • [Journal Article] Electronically Controlled Beam Steering of Terahertz Waves Driven by an Optical Phased Array2023

    • Author(s)
      近藤和哉, 土居諒, 車明, 三上裕也, 加藤和利
    • Volume
      J106-C
    • Issue
      2
    • Pages
      86-87
    • DOI

      10.14923/transelej.2022JCL0007

    • ISSN
      1881-0217
    • Year and Date
      2023-02-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Generating and Enhancing THz Pulses Via an Antenna-Coupled Uni-Traveling-Carrier Photodiode Array2023

    • Author(s)
      Ming Che, Kazuya Kondo, Kazutoshi Kato
    • Journal Title

      IEEE Transactions on Terahertz Science and Technology

      Volume: May 3 Issue: 3 Pages: 1-7

    • DOI

      10.1109/tthz.2023.3251736

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Proposal and Demonstration of Terahertz-wave Generation Using a Fast Wavelength Tunable Laser2022

    • Author(s)
      白水孝始, 清木直哉, 松本凌, 桝冨直人, 三上裕也, 上田悠太, 加藤和利
    • Volume
      J105-C
    • Issue
      12
    • Pages
      384-385
    • DOI

      10.14923/transelej.2022JCL0003

    • ISSN
      1881-0217
    • Year and Date
      2022-12-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Arrayed Photomixers for THz Beam-Combining and Beam-Steering2022

    • Author(s)
      Che Ming、Kondo Kazuya、Kanaya Haruichi、Kato Kazutoshi
    • Journal Title

      Journal of Lightwave Technology

      Volume: 40 Issue: 20 Pages: 6657-6665

    • DOI

      10.1109/jlt.2022.3204113

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fast Wavelength Switching at Tunable DFB LaserArray by Current/Temperature Cooperative Control2022

    • Author(s)
      Shenghong Ye, Ming Che, Takeshi Kuboki, Kazutoshi Kato
    • Journal Title

      IEEE Photonics Thecnology Letters

      Volume: VOL.34, NO. 1 Issue: 1 Pages: 51-54

    • DOI

      10.1109/lpt.2021.3137808

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optical heterodyne AND operation as emulation of physical layer security at wireless communication2021

    • Author(s)
      Kenta Yamauchi, Kazutoshi Kato
    • Journal Title

      IEICE Electronics Express

      Volume: 18 Issue: 4 Pages: 20210008-20210008

    • DOI

      10.1587/elex.18.20210008

    • NAID

      130007991468

    • ISSN
      1349-2543
    • Year and Date
      2021-02-25
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optically controlled THz power tuning based on interference at transmission line2021

    • Author(s)
      Ming Che, Haruichi Kanaya, Kazutoshi Kato
    • Journal Title

      OPTICS EXPRESS

      Volume: Vol. 29, No. 13 Issue: 13 Pages: 20034-20044

    • DOI

      10.1364/oe.423308

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Vibration insensitive THz wave interferometry for characterizing optical phase shifter2021

    • Author(s)
      Ming Che, Ruo Yamamoto, Hiroshi Ito, Tadao Ishibashi, Kazutoshi Kato
    • Journal Title

      OPTIK

      Volume: 242 Pages: 1-1

    • DOI

      10.1016/j.ijleo.2021.167203

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Demonstration of 600-GHz Wave Beam Forming by Arrayed Light Sources With Arrayed Photomixers2021

    • Author(s)
      Younjin Kim , Takeshi Kuboki, Kazutoshi Kato
    • Journal Title

      IEEE Photonics Thecnology Letters

      Volume: VOL. 33, NO. 24 Issue: 24 Pages: 1435-1438

    • DOI

      10.1109/lpt.2021.3124826

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photonics-Assisted Terahertz-Wave Beam Steering and Its Application in Secured Wireless Communication2021

    • Author(s)
      Kazutoshi Kato
    • Journal Title

      Photonics

      Volume: 2022, 9, 9 Issue: 1 Pages: 1-1

    • DOI

      10.3390/photonics9010009

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Full-range wavelength switching at tunable distributed amplification (TDA)-DFB laser with high-accuracy feedforward control2020

    • Author(s)
      Yuri Niiya, Takeshi Kuboki, Kazutoshi Kato
    • Journal Title

      Electronics Letters

      Volume: 32 Issue: 6 Pages: 1377-1380

    • DOI

      10.1049/ell2.12122

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Terahertz-wave beam control by photonics technology2020

    • Author(s)
      Kazutoshi Kato
    • Journal Title

      Proceedings of SPIE - The International Society for Optical Engineering

      Volume: 11499 Pages: 1-1

    • DOI

      10.1117/12.2567849

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Generating and Enhancing THz Pulses Via an Antenna-Coupled Uni-Traveling-Carrier Photodiode Array2023

    • Author(s)
      Ming Che, Kazutoshi Kato
    • Organizer
      Photonics West2023
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstration of Combined and Steered 300-GHz Waves via Optoelectronic Phased Array2023

    • Author(s)
      Ming Che, Kazuya Kondo, Ryo Doi, Kazutoshi Kato
    • Organizer
      OOptical Fiber Communication Conference (OFC2023)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高速波長可変レーザとアレー導波路回折格子を用いたテラヘルツパルス波発生2023

    • Author(s)
      桝冨直人, 白水孝始, 清木直哉, 松本凌, 三上裕也, 上田悠太, 加藤和利
    • Organizer
      電子情報通信学会総合大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高速波長可変レーザとアレー導波路回折格子を用いたテラヘルツパルス波発生2023

    • Author(s)
      土居諒, 近藤和哉, 車明, 三上裕也, 加藤和利
    • Organizer
      電子情報通信学会総合大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 光フェーズドアレ ー と アレー フォトミキサを用いた テラヘルツ波の強度増大2022

    • Author(s)
      土居諒, 近藤和哉, 車 明, 三上裕也 加藤和利
    • Organizer
      レーザー学会九州支部学生講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 波長可変 レーザー によるテラヘルツパルス 波 生成2022

    • Author(s)
      桝冨直人, 白水孝始, 清木直哉, 松本凌, 三上裕也, 上田悠太, 加藤和利
    • Organizer
      レーザー学会九州支部学生講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] テラヘルツ波高セキュリティ通信を用いた500 Mbit/s 無線伝送2022

    • Author(s)
      陳漢偉, 河合優佑, 矢野拓弥, 三上裕也, 加藤和利
    • Organizer
      電子情報通信学会ソサイエティ大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] フォトミキシングによる光-テラヘルツ波信号変換技術2022

    • Author(s)
      加藤和利
    • Organizer
      電子情報通信学会ソサイエティ大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] InGaN真空フォトダイオード用405nm帯二光波生成2022

    • Author(s)
      宋慶傑, 三上裕也, 加藤和利
    • Organizer
      電子情報通信学会ソサイエティ大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 波長可変レーザを用いたテラヘルツ波発生法の実証2022

    • Author(s)
      桝冨直人, 白水孝始, 清木直哉, 松本凌, 三上裕也, 上田悠太, 加藤和利
    • Organizer
      電子情報通信学会ソサイエティ大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Novel Phase Stabilization Technique at Photomixing-BasedTerahertz Wave Phase Modulation System2022

    • Author(s)
      Amalina Athira Ibrahim, Takashi Shiramizu, Hanwei Chen, Yuya Mikami, Kazutoshi Kato
    • Organizer
      27th Microoptics Conference (MOC 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] THz-Wave Beam Steering with 4-Channel Optical Phased Array2022

    • Author(s)
      Kazuya Kondo, Ming Che, Ryo Doi, Kazutoshi Kato
    • Organizer
      27th Microoptics Conference (MOC 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] First Demonstration of 405-nm Two-Tone Lightwave from GaN Laser for High Power Terahertz Wave Generation2022

    • Author(s)
      Qingjie Song, Yuya Mikam, Kazutoshi Kato
    • Organizer
      27th Microoptics Conference (MOC 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstration of Secure Wireless Transmission at 500 Mbit/s Based on 300-GHz Waves from Separated Transmitters2022

    • Author(s)
      Hanwei Chen, Yusuke Kawai, Takuya Yano, Yuya Mikami, Kazutoshi Kato
    • Organizer
      27th Microoptics Conference (MOC 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstration of Novel THz Wave Generation Based on a Fast Wavelength Switching Laser2022

    • Author(s)
      Takashi Shiramizu, Naoya Seiki, Ryo Matsumoto, Naoto Masutomi, Yuya Mikami,Yuta Ueda, Wataru Kobayashi, and Fumito Nakajima, Kazutoshi Kato
    • Organizer
      27th Microoptics Conference (MOC 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pilot-Lightwave-based Terahertz Wave Phase Stabilization2022

    • Author(s)
      Amalina Athira Ibrahim, Takashi Shiramizu, Shenghong Ye, Yuya Mikami, Kazutoshi Kato
    • Organizer
      28th International Semiconductor Laser Conference (ISLC 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstration of 500 Mbit/s Data Transmission Utilizing Secure Terahertz Communication Enabled by Phased Array UTC-PDs2022

    • Author(s)
      Hanwei Chen, Yusuke Kawai, Takuya Yano, Ssali Hussein, Kazutoshi Kato
    • Organizer
      Asia-Pacific Microwave Conference (APMC2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] THz-wave intensity modulation by combining a high-speed wavelength-tunable laser and photomixing technique2022

    • Author(s)
      Naoya Seiki, Takashi Shiramizu, Ryo Matsumoto, Naoto Masutomi, Yuya Mikami, Yuta Ueda, Fumito Nakajima, Kazutoshi Kato
    • Organizer
      Asia-Pacific Microwave Conference (APMC2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Terahertz-Wave Phase Modulation Enabled by Optical Interferometric Phase Stabilization2022

    • Author(s)
      Amalina Athira Ibrahim, Hanwei Chen, Takashi Shiramizu, Yuya Mikami, Kazutoshi Kato
    • Organizer
      Asia-Pacific Microwave Conference (APMC2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstration of 405-nm Two-Tone Lightwave for Terahertz-wave Generation at InGaN Photodiode2022

    • Author(s)
      Qingjie Song, Yuya Mikami, Kazutoshi Kato
    • Organizer
      Asia-Pacific Microwave Conference (APMC2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Performance Analysis of a Wilkinson Power Combiner-Fed Patch Antenna for 300-GHz Arrayed Photomixers2022

    • Author(s)
      Hussein Ssali, Ming Che, Kazutoshi Kato
    • Organizer
      10th International Japan-Africa Conference on Electronics, Communications, and Computations (JAC-ECC 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Terahertz-Wave Beam Generation by Photonic Integrated Device2021

    • Author(s)
      Kazutoshi Kato
    • Organizer
      URSI-GASS
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 60-Times Power Enhancement of 300-GHz Terahertz Wave by 8-arrayed UTC-PDs2021

    • Author(s)
      Kazuya Kondo, Yuki Matsuo, Kazutoshi Kato
    • Organizer
      26th Microoptics Conference (MOC)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Terahertz-Wave Beam Steering by Photomixing with Chromatic Dispersion of Optical Fibers2021

    • Author(s)
      Takumi Saito, Shigehiro Takasaka, Kazutoshi Kato
    • Organizer
      26th Microoptics Conference (MOC)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstration of Data Transmission Based on AND Operation between Two Terahertz Waves for Secure Wireless Communication2021

    • Author(s)
      Yusuke Kawai, Kenta Yamauchi, Hiroshi Ito, Tadao Ishibashi, Kazutoshi Kato
    • Organizer
      2021 International Topical Meeting on Microwave Photonics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Arrayed Uni-traveling-carrier Photodiodes for Pulsed THz Wave Beam Steering2021

    • Author(s)
      Ming Che, Yuki Matsuo, Kazuya Kondo and Kazutoshi Kato
    • Organizer
      2021 International Topical Meeting on Microwave Photonics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstration of Secure Wireless Communication System Using a Pair of Terahertz-Wave Beams2021

    • Author(s)
      Yusuke Kawai1 Kenta Yamauchi, Hiroshi Ito, Tadao Ishibashi, Kazutoshi Kato
    • Organizer
      Photonics abd Electromagnetisc Research Symposium 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Novel autocorrelation system for high-repetition THz pulse wave2021

    • Author(s)
      Ruo Yamamoto, Kazutoshi Kato
    • Organizer
      Photonics abd Electromagnetisc Research Symposium 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 300-GHz Terahertz Wave Beam Steering using 8-arrayed Arrayed UTC-PDs2021

    • Author(s)
      Yuki Matsuo, Kazuya Kondo, Kazutoshi Kato
    • Organizer
      Photonics abd Electromagnetisc Research Symposium 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Terahertz-Wave Beam Steering by Wavelength Tuning at Dispersive Optical Fibers2021

    • Author(s)
      Takumi Saito, Kazutoshi Kato
    • Organizer
      Photonics abd Electromagnetisc Research Symposium 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Demonstration of Bi-directional 400-GHz-wide High-speed High-reliability Wavelength Switching at DFB Laser with Current/Temperature Cooperative Control2021

    • Author(s)
      Shenghong Ye, Ming Che, Takeshi Kuboki, Kazutoshi Kato
    • Organizer
      Photonics abd Electromagnetisc Research Symposium 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 非線形モデルによる波長可変レーザの高速波長切替制御2021

    • Author(s)
      新谷友里、久保木猛、加藤和利
    • Organizer
      電子情報通信学会和文論文誌C
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Terahertz-wave beam control by photonics technology2020

    • Author(s)
      Kazutoshi Kato
    • Organizer
      SPIE Optical Engineering + Applications
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Generation and Observation of 200-GHz-Repetition Electromagnetic Pulse by THz Autocorrelator2020

    • Author(s)
      Kohei Ichiyama, Ruo Yamamoto, Kazutoshi Kato
    • Organizer
      25th OptoElectronics and Communications Conference (OECC)
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] THz-Wave Power Multiplication by Parallel-Connection UTC-PDs2020

    • Author(s)
      Yuki Matsuo, Ming Che, Haruichi Kanaya, Kazutoshi Kato
    • Organizer
      25th OptoElectronics and Communications Conference (OECC)
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Gap-Assisted Power Enhancement of THz Wave at Planar Antenna on Semiconductor Substrate2020

    • Author(s)
      Ssali Hussein, Kazutoshi Kato
    • Organizer
      2020 International Topical Meeting on Microwave Photonics (MWP)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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