• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of an ideal method for measuring electric fields in gases using second harmonic generation by ultrashort pulsed lasers

Research Project

Project/Area Number 21K18709
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 21:Electrical and electronic engineering and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Kumada Akiko  東京大学, 大学院工学系研究科(工学部), 教授 (20313009)

Co-Investigator(Kenkyū-buntansha) 佐藤 正寛  東京大学, 大学院工学系研究科(工学部), 准教授 (40805769)
藤井 隆  東京大学, 大学院工学系研究科(工学部), 特任教授 (60371283)
Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords電界計測 / 二次高調波 / ラプラス場 / 逆計算 / 位相整合 / DC-SHG / プラズマ計測 / 短パルスレーザ
Outline of Research at the Start

気体中における電界誘起第二次高調波を利用した電界計測法(E-FISHG法)は瞬間的な光電界を極めて強くすることでχ(3)は小さくとも大きな分極の非線形項(すなわち高感度出力)が期待できるという手法であり、理想的な電界計測技術を実現できるポテンシャルをもつ。現在、一点、もしくは一次元の測定にとどまっているうえ、ポアッソン場への適用可能性の検証、レーザプラズマによる擾乱の影響の議論はなされていない。本研究では具体的には(1)三次元電界分布測定技術の確立、(2)量子化学計算によるχ(3)の導出による適応場の拡大を行うとともに、(3)短パルスレーザの大気伝搬時の非線形現象の特性把握について研究を行う。

Outline of Final Research Achievements

The aim of this study is to realise an ideal electric field measurement method that can measure the three-dimensional distribution of the vector components of the electric field in Laplace and Poisson fields non-contact, non-invasively and with high spatial resolution, using the electric field-induced second harmonic generation (E-FISHG) due to the third-order non-linear susceptibility of gas polarisation. The SH is generated by focusing a laser beam with a lens to a sufficient intensity, and a data sequence is obtained by translating the lens and shifting the focus in the direction of laser propagation, and then performing a reverse calculation based on the laser beam shape information that has been measured or calculated in advance,to spatially resolve the applied electric filed in the beam propagation direction as well.

Academic Significance and Societal Importance of the Research Achievements

本研究においてはレーザ光のパルス幅・強度と、対象媒体への擾乱の大きさ、及び期待される感度の関係を、実験とシミュレーションを通じ、定量的に把握した。、測定法としてもっとも重要な事案である、正確な測定が行える適用範囲と、各範囲において達成できるスペックを明確化することができた。非侵襲で高い分解能で電界を測定できる手法であることから、放電機構の解明、放電利用機器の一層の効率化、非線形絶縁材を用いた絶縁設計技術の確立に資するものである。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (19 results)

All 2024 2023 2022 2021

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (12 results) (of which Int'l Joint Research: 9 results,  Invited: 2 results)

  • [Journal Article] Polarization change of femtosecond laser pulses in air measured by electric-field-induced second-harmonic generation2024

    • Author(s)
      Nakamura Shin, Fujii Takashi, Sato Masahiro, Kumada Akiko, Oishi Yuji
    • Journal Title

      Optics Letters

      Volume: 49 Issue: 3 Pages: 726-726

    • DOI

      10.1364/ol.511240

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electric-field-vector-profile Measurement in Gas using Electric-field-induced Second-harmonic Generation2022

    • Author(s)
      Sogame Masataka、Nakamura Shin、Sato Masahiro、Fujii Takashi、Kumada Akiko、Oishi Yuji
    • Journal Title

      IEEJ Transactions on Fundamentals and Materials

      Volume: 142 Issue: 8 Pages: 362-363

    • DOI

      10.1541/ieejfms.142.362

    • ISSN
      0385-4205, 1347-5533
    • Year and Date
      2022-08-01
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Systematic 1D electric field induced second harmonic measurement on primary-to-secondary transition phase of positive streamer discharge in atmospheric-pressure air2022

    • Author(s)
      Inada Yuki、Shioda Tatsutoshi、Nakamura Ryosuke、Maeyama Mitsuaki、Kumada Akiko、Nakamura Shin、Ono Ryo
    • Journal Title

      Journal of Physics D: Applied Physics

      Volume: 55 Issue: 38 Pages: 385201-385201

    • DOI

      10.1088/1361-6463/ac7b54

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Optimization of beam shaping and error quantification of calibration approach using E-FISHG based electric field measurements2022

    • Author(s)
      Nakamura Shin、Sato Masahiro、Fujii Takashi、Kumada Akiko
    • Journal Title

      Plasma Sources Science and Technology

      Volume: 31 Issue: 11 Pages: 115020-115020

    • DOI

      10.1088/1361-6595/aca4f1

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Electric-field-profile measurement along a probing laser path based on electric-field-induced second-harmonic generation2021

    • Author(s)
      Shin Nakamura, Mashiro Sato, Takashi Fujii, Akiko Kumada and Yuji Oishi
    • Journal Title

      Physical Review A

      Volume: 104 Issue: 5 Pages: 053511-053511

    • DOI

      10.1103/physreva.104.053511

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Conceptual Design and Feasibility Study of Flexible Gas-Insulated Transmission Line Using CF3I Gas Mixture2021

    • Author(s)
      Chihiro Tateyama, Takuto Kobayashi, Akiko Kumada and Kunihiko Hidaka
    • Journal Title

      IEEE Transactions on Dielectrics and Electrical Insulation

      Volume: Vol. 28, No. 4 Issue: 4 Pages: 1424-1430

    • DOI

      10.1109/tdei.2021.009605

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Depth profiling of surface degradation of silicone rubber composite insulators by remote laser-induced breakdown spectroscopy2021

    • Author(s)
      Homma Taisei、Kumada Akiko、Fujii Takashi、Homma Hiroya、Oishi Yuji
    • Journal Title

      Spectrochimica Acta Part B: Atomic Spectroscopy

      Volume: 180 Pages: 106206-106206

    • DOI

      10.1016/j.sab.2021.106206

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Remote measurement of salt deposit density on porcelain insulator using laser-induced breakdown spectroscopy2023

    • Author(s)
      T. Fujii, M. Ono, and A. Kumada
    • Organizer
      International Symposium on High Voltage Engineering (ISH2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] TOWARDS 3D ELECTRIC FIELD IMAGING USING E-FISHG2023

    • Author(s)
      M. Sogame, S .Nakamura, M .Sato,T. Fujii, and A .Kumada
    • Organizer
      International Symposium on High Voltage Engineering (ISH2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ideal Optical Sensing of Electric Field Supported by Materials Informatics2023

    • Author(s)
      Akiko KUMADA
    • Organizer
      IEEE Conference on Electrical Insulation and Dielectric Phenomena (2023 IEEE CEIDP)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of laser-induced breakdown spectroscopy system for on-site diagnostics of porcelain insulators2023

    • Author(s)
      T. Fujii, M. Ono, and A. Kumada
    • Organizer
      OPTICS & PHOTONICS International Congress 2023, Laser-Solutions for Space and the Earth (LSSE) 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 電界誘起第二高調波発生による大気圧中直流コロナ放電電界測定2023

    • Author(s)
      中村 信, 十亀正考, 佐藤正寛, 藤井 隆, 熊田亜紀子
    • Organizer
      誘電・絶縁材料/放電・プラズマ・パルスパワー/高電圧合同研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] E-FISHG法による電界3次元分布測定に向けたレーザパラメータの最適化2023

    • Author(s)
      十亀正考, 中村 信, 藤井 隆, 佐藤正寛, 熊田亜紀子
    • Organizer
      誘電・絶縁材料/放電・プラズマ・パルスパワー/高電圧合同研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] Electric-field-vector-profile measurement in gases based on electric-field-induced second-harmonic generation2022

    • Author(s)
      S. Nakamura, M. Sogame, M. Sato, T. Fujii, A. Kumada, Y.Oishi
    • Organizer
      2022 Gaseous Electronics Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Portable laser-induced breakdown spectroscopy system for on-site diagnostics of composite insulators2022

    • Author(s)
      T. Fujii, T. Homma, A. Kumada, H. Homma, Y. Oishi
    • Organizer
      LIBS2022 (12th International Conference on Laser-Induced Breakdown Spectroscopy
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 大気中における電界誘起第二高調波発生のレーザパル ス幅依存性2022

    • Author(s)
      中村 信, 十亀正考, 佐藤正寛, 藤井 隆, 熊田亜紀子
    • Organizer
      令和4年電気学会基礎・材料・共通部門大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Measurement method for electric field in streamer discharge based on electric field induced second harmonic generation2022

    • Author(s)
      S. Nakamura, M. Sato, T. Fujii, A. Kumada
    • Organizer
      49th IEEE International Conference on Plasma Science
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ELECTRIC FIELD PROFILE MEASUREMENT ALONG PROBINGLASER PATH BASED ON ELECTRIC FIELD-INDUCED SECOND-HARMONIC GENERATION,2021

    • Author(s)
      Shin Nakamura, Masahiro Sato, Takashi Fujii, Akiko Kumada, Yuji Oishi
    • Organizer
      The 48TH IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Recent advance in optical measurement techniques for elucidation of high voltage phenomena2021

    • Author(s)
      Akiko Kumada
    • Organizer
      22nd International Symposium on High Voltage Engineering (ISH 2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited

URL: 

Published: 2021-07-13   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi