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Development of one-pulse high-speed terahertz spectroscopic system

Research Project

Project/Area Number 18H03887
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 30:Applied physics and engineering and related fields
Research InstitutionNagoya University

Principal Investigator

Kawase Kodo  名古屋大学, 工学研究科, 教授 (00296013)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥43,290,000 (Direct Cost: ¥33,300,000、Indirect Cost: ¥9,990,000)
Fiscal Year 2021: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2020: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Fiscal Year 2019: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2018: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Keywordsテラヘルツ波 / パラメトリック / 非線形光学 / 分光 / パラメトリック発振 / テラヘルツ工学 / テラヘルツ / テラヘルツ分光 / テラヘルツ光学
Outline of Final Research Achievements

The only technology that can check for banned drugs hidden in mail or prescription drugs handed to you at the pharmacy without opening the package is the optical injection-type THz-wave parametric generator (is-TPG) that we are developing. However, the conventional is-TPG technique has problems of long inspection time and pulse-by-pulse output fluctuation due to the wavelength-sweeping spectroscopy. In this study, we have developed a one-pulse high-speed terahertz spectroscopy system that simultaneously generates multiple wavelengths by integrating the results of previous preliminary experiments at a high level, enabling real-time inspection of mail and prescription drugs, and total inspection of pharmaceutical tablets and powders in the manufacturing process, which have been expected for some time.

Academic Significance and Societal Importance of the Research Achievements

is-TPGを用いたTHz分光器は、これまで不可能であった減衰が大きい厚手の遮蔽物内に隠された試薬の分光や、硬質プラスチック製品の3次元CTなども実現してきた。しかしながら、is-TPGは波長可変光源のため、ワンパルス毎に1波長しか出力できず、分光の際に波長を変える必要があり、測定時間が長くかかる。また、パルス毎の出力ゆらぎによって測定値がばらつくため、多数パルスの平均化を要する。このため、実用上求められる高速なリアルタイム測定が困難であった。本研究ではそのような課題を克服し、実用性の優れたテラヘルツ分光システムを実現した。

Report

(5 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (43 results)

All 2022 2021 2020 2019 2018

All Journal Article (17 results) (of which Peer Reviewed: 17 results,  Open Access: 1 results) Presentation (25 results) (of which Int'l Joint Research: 23 results,  Invited: 25 results) Book (1 results)

  • [Journal Article] Application of Machine Learning to Terahertz Spectroscopic Imaging of Reagents Hidden by Thick Shielding Materials?2021

    • Author(s)
      K. Murate, H. Kanai, and K. Kawase
    • Journal Title

      IEEE Transactions on Terahertz Science and Technology

      Volume: 11 Issue: 6 Pages: 620-625

    • DOI

      10.1109/tthz.2021.3094128

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of the crystal phase and microstructure of pottery bodies on the transmission characteristics of terahertz waves2021

    • Author(s)
      S.Niijima,H.Taniguchi,H.Matsuda,H.Noritsugu,K. Murate, K. Kawase
    • Journal Title

      Journal of Asian Ceramic Societies

      Volume: - Issue: 2 Pages: 443-451

    • DOI

      10.1080/21870764.2021.1889454

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-power ASE-free fast wavelength-switchable external cavity diode laser2021

    • Author(s)
      S. Mine, K. Kawase, K. Murate
    • Journal Title

      Applied Optics

      Volume: 60 Issue: 7 Pages: 1953-1957

    • DOI

      10.1364/ao.416033

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Real-time wide dynamic range spectrometer using a rapidly wavelength-switchable terahertz parametric source2021

    • Author(s)
      S. Mine, K. Kawase and K. Murate
    • Journal Title

      Optics Letters

      Volume: 46 Issue: 11 Pages: 2618-2621

    • DOI

      10.1364/ol.423985

    • NAID

      120007175355

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Highly sensitive multi-stage terahertz parametric detector2020

    • Author(s)
      H. Sakai, K. Kawase, and K. Murate
    • Journal Title

      Optics Letters

      Volume: 45 Issue: 14 Pages: 3905-3908

    • DOI

      10.1364/ol.394975

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nonlinear optical process of second-order nonlinear optical susceptibility 133 in an organic nonlinear optical crystal2020

    • Author(s)
      K. Takeya, T. Kamei, K. Kawase, and H. Uchida
    • Journal Title

      Optics Letters

      Volume: 45 Issue: 19 Pages: 5348-5351

    • DOI

      10.1364/ol.400235

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Observation of sublimation of ice using terahertz spectroscopy2020

    • Author(s)
      K. Matsumura, K. Kawase, K. Takeya
    • Journal Title

      Royal Society Open Science

      Volume: 7 Issue: 9 Pages: 192083-192083

    • DOI

      10.1098/rsos.192083

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Terahertz tag identifiable through shielding materials using machine learning2020

    • Author(s)
      R. Mitsuhashi, K. Murate, S. Niijima, T. Horiuchi, and K. Kawase
    • Journal Title

      Optics Express

      Volume: 28 Issue: 3 Pages: 3517-3527

    • DOI

      10.1364/oe.384195

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Six billion-fold amplification via a two-stage terahertz parametric amplifier2020

    • Author(s)
      K. Murate, H. Sakai, and K. Kawase
    • Journal Title

      IEEE Transactions on Terahertz Science and Technology

      Volume: 10 Issue: 2 Pages: 200-203

    • DOI

      10.1109/tthz.2020.2964832

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 多波長テラヘルツパラメトリック発生器によるリアルタイム分光2019

    • Author(s)
      村手宏輔, 川瀬晃道
    • Journal Title

      レーザー研究

      Volume: 47 Pages: 11-15

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ,Antireflection coating on organic nonlinear optical crystals using soft materials2019

    • Author(s)
      H. Uchida, C. Koyama, T. Takagi, P. Wang, T. Kamei, K. Kawase, K. Takeya
    • Journal Title

      Applied Physics Letters

      Volume: 115 Issue: 23 Pages: 231107-231107

    • DOI

      10.1063/1.5126462

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optical evaluation of Cytop, an amorphous fluoropolymer, in the terahertz frequency across a wide temperature range2019

    • Author(s)
      K. Takeya, Y. Ikegami, K. Matsumura, K. Kawase, H. Uchida
    • Journal Title

      Applied Physics Express

      Volume: 12 Issue: 4 Pages: 042004-042004

    • DOI

      10.7567/1882-0786/ab0716

    • NAID

      210000135651

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Perspective: Terahertz wave parametric generator and its applications2018

    • Author(s)
      K. Murate, K. Kawase
    • Journal Title

      JOURNAL OF APPLIED PHYSICS

      Volume: 124 Issue: 16 Pages: 160901-160901

    • DOI

      10.1063/1.5050079

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pump wavelength-independent broadband terahertz generation from a nonlinear optical crystal2018

    • Author(s)
      K. Takeya, K. Okimura, K. Oota, K. Kawase, and H. Uchida
    • Journal Title

      Optics Letters

      Volume: 43 Issue: 17 Pages: 4100-4103

    • DOI

      10.1364/ol.43.004100

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Single-Cycle Terahertz Pulse Generation from OH1 Crystal via Cherenkov Phase Matching2018

    • Author(s)
      Uchida Hirohisa、Oota Kengo、Okimura Koutarou、Kawase Kodo、Takeya Kei
    • Journal Title

      Journal of Infrared, Millimeter, and Terahertz Waves

      Volume: 39 Issue: 6 Pages: 509-513

    • DOI

      10.1007/s10762-018-0481-7

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Organic Nonlinear Optical Single-Crystalline Thin Film Grown by Physical Vapor Deposition for Terahertz Generation2018

    • Author(s)
      H. Uchida, R. Yamazaki, K. Oota, K. Okimura, T. Minami, K. Takeya, and K. Kawase
    • Journal Title

      Crystal Growth and Design

      Volume: 18 Issue: 7 Pages: 4029-4036

    • DOI

      10.1021/acs.cgd.8b00388

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Evaluation of the sintering properties of pottery bodies using terahertz time-domain spectroscopy2018

    • Author(s)
      S. Niijima, M. Shoyama, K. Murakami and Kodo Kawase
    • Journal Title

      Journal of Asian Ceramic Societies

      Volume: 6 Pages: 37-42

    • NAID

      40021447686

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Wide Dynamic Range Imaging System Using Three-stage Terahertz Parametric Detector (Keynote)2021

    • Author(s)
      K. Murate, K. Nagase, K. Kawase
    • Organizer
      46th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of a High Signal to Noise Ratio Terahertz-wave Parametric Generator (Keynote)2021

    • Author(s)
      S. Mine, K. Kawase, K. Murate
    • Organizer
      46th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of a Terahertz Parametric Generator/Detector for Nondestructive Testing (Invited)2021

    • Author(s)
      K. Murate, K. Kawase
    • Organizer
      JSAP-OSA Joint Symposia
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of terahertz parametric generator for real-time measurement (invited)2021

    • Author(s)
      K.Murate, and K. Kawase
    • Organizer
      9th Russia-Japan-USA-Europe Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies (RJUSE TeraTech-2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高感度テラヘルツ波パラメトリック検出および分光イメージングに関して (招待講演)2021

    • Author(s)
      川瀬晃道, 村手宏輔
    • Organizer
      第20回ミリ波サブミリ波受信機ワークショップ
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Injection-seeded THz parametric generator, detector, and applications (Invited)2021

    • Author(s)
      K. Kawase and K. Murate
    • Organizer
      Instruments Research and Development Establishment (IRDE), Diamond Jubilee Lecture Series
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Injection-seeded THz parametric generation and detection with 125dB dynamic range2021

    • Author(s)
      K. Kawase, K. Murate
    • Organizer
      The 3rd Fraunhofer Photonic Research Cooperation Workshop at Optics & Photonics International Exhibition 2021 (OPIE ’21)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Injection-seeded THz parametric generator, detector, and application (Invited)2020

    • Author(s)
      K. Murate, K. Kawase
    • Organizer
      SPIE Optical Engineering + Applications 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] High-brightness THz source with wide tunability (Invited)2020

    • Author(s)
      K. Murate, K. Kawase
    • Organizer
      OSA High-brightness Sources and Light-driven Interactions Congress
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 高速測定に向けたテラヘルツパラメトリック光源の開発 (招待講演)2020

    • Author(s)
      村手宏輔, 川瀬晃道
    • Organizer
      テラヘルツ科学の最先端VII
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Detection of drugs using is-TPG system (Invited)2019

    • Author(s)
      K. Kawase, K. Murate
    • Organizer
      International Workshop onTHz Technology
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] One shot detection of drugs hidden in envelopes using multiwavelength is-TPG (Invited)2019

    • Author(s)
      K. Murate, K. Kawase
    • Organizer
      SPIE Conference SI106 Next-Generation Spectroscopic Technologies XII
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Terahertz wave parametric amplification using LiNbO3 crystal pumped by the microchip Nd:YAG laser (Invited)2019

    • Author(s)
      K. Murate, H. Sakai, Y. Guo, K. Kawase
    • Organizer
      The 7th Laser Ignition and Giant-microphotonics Conference (LIC2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] High gain Terahertz wave parametric amplifier using LiNbO3 crystal (Invited)2019

    • Author(s)
      K. Murate, Y. Guo, H. Sakai, K. Kawase
    • Organizer
      The 7th Advanced Electromagnetics Symposium
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Low Noise And High Gain Terahertz Parametric Amplifier (keynote)2019

    • Author(s)
      K. Murate, H. Sakai, Y. Guo, K. Kawase
    • Organizer
      44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Terahertz Tag Identifiable Through Shielding Material (keynote)2019

    • Author(s)
      R. Mitsuhashi, T. Horiuchi, K. Murate, K. Kawase
    • Organizer
      44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Highly Sensitive THz Detection using is-TPG (Invited)2019

    • Author(s)
      K. Kawase, H. Sakai, K. Murate
    • Organizer
      The 5th International Symposium on Microwave/Terahertz Science and Applications (MTSA2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Ultra-sensitive THz parametric detection (Invited)2019

    • Author(s)
      K. Kawase, H. Sakai, K. Murate
    • Organizer
      International Conference on Optics and Optoelectronics (ICOL-2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Extremely weak terahertz wave amplification using terahertz parametric amplifier (invited)2019

    • Author(s)
      K. Murate, H. Sakai, K. Kawase
    • Organizer
      The 11st Asian Symposium on Intense Laser Science (ASILS11)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The applications of terahertz parametric sources (Invited)2018

    • Author(s)
      K. Kawase, and K. Murate
    • Organizer
      The 9th International Symposium on Ultrafast Phenomena and Terahertz Waves (ISUPTW2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] THz spectrometer using injection-seeded parametric generator (Invited)2018

    • Author(s)
      K. Kawase, Y. Guo, K. Maeda, and K. Murate
    • Organizer
      11th Asia-Pacific Laser Symposium (APLS 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Multi wavelength injection-seeded THz parametric generator (Invited)2018

    • Author(s)
      K. Murate, K. Maeda, Y. Guo and K. Kawase
    • Organizer
      The 6th Advanced Electromagnetics Symposium (AES 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Multi wavelength THz source for one-pulse spectroscopy (Invited)2018

    • Author(s)
      K. Kawase, Y. Guo, K. Maeda and K. Murate
    • Organizer
      7th Russia-Japan-USA-Europe Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies (RJUSE Tera-Tech 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Multi wavelength is-TPG for one-shot spectroscopy (Plenary)2018

    • Author(s)
      K. Kawase, K. Murate
    • Organizer
      International Conference on Microwave & THz Technologies, and Wireless Communications (IRPhE 2018), TH-6, Arthurs Aghveran Resort, Aghveran, Armenia (Sept. 19-21, 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Multi wavelength injection-seeded THz parametric system (Invited)2018

    • Author(s)
      K. Murate, and K. Kawase
    • Organizer
      3rd International Conference on Terahertz and Microwave Radiation: Generation, Detection and Applications (TERA 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] テラヘルツ波産業創成の課題と展望2022

    • Author(s)
      村手宏輔, 川瀬晃道
    • Total Pages
      8
    • Publisher
      シーエムシー出版刊, 東京
    • ISBN
      9784781316628
    • Related Report
      2021 Annual Research Report

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Published: 2018-04-23   Modified: 2024-01-30  

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