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超高密度媒質中プラズマの分光学的基礎研究と新奇光物性発現

Research Project

Project/Area Number 12J03125
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Plasma science
Research InstitutionThe University of Tokyo

Principal Investigator

占部 継一郎  東京大学, 大学院新領域創成科学研究科, 特別研究員(PD)

Project Period (FY) 2012 – 2014
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,630,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2012: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywordsプラズマ / 超臨界流体プラズマ / クライオプラズマ / レーザー分光診断 / レーザ分光診断
Outline of Annual Research Achievements

昨年度から引き続いて近赤外レーザーヘテロダイン干渉計による超高密度媒質中のマイクロプラズマ電子密度計測手法の研究開発を進め, 本年度は超臨界流体ヘリウム中でのプラズマ電子密度計測実験に成功した. 本研究成果は雑誌論文に掲載されている. また, この研究で開発した近赤外レーザー干渉計をプラズマ中のガス温度計測に応用すると, 非常に高い空間・時間・温度分解能を達成することができることが分かった. 今後は電子密度計測に加えてこのガス温度計測にも積極的に取り組むことで, 高密度媒質中でのプラズマ制御の向上に大いに寄与することができると期待される.
共同研究者との実験結果に対するディスカッションを通じて, プラズマ反応機構全体のバランスがガス温度に依存する可能性が高いと着想し, ヘリウム/窒素混合ガス系における各反応速度定数の温度依存性を考慮した反応モデル構築を行い, 励起粒子のバランスが温度低下と共に大きく変化することを明らかにした. 本研究成果は本年度雑誌論文に掲載されており, 高密度媒質中プラズマ制御におけるガス温度の重要性を示唆していると考えている.
昨年度より, 核融合科学研究所の秋山毅志准教授と共同で位相変調2倍高調波干渉計という核融合プラズマ計測のために開発されたレーザー干渉計を高気圧プラズマ計測に応用するための共同研究を開始し, 従来の大気圧プラズマ電子密度計測を上回る精度での計測結果を得ることができた. 本研究成果は国内・国際会議等で発表し非常に高い評価を得るとともに, 本成果をまとめた雑誌論文は出版社IOPより質が高い論文「IOP select」としてピックアップされている.

Research Progress Status

平成26年度が最終年度のため、記入しない。

Strategy for Future Research Activity

平成26年度が最終年度のため、記入しない。

Report

(3 results)
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (28 results)

All 2015 2014 2013 2012 Other

All Journal Article (8 results) (of which Peer Reviewed: 8 results) Presentation (15 results) (of which Invited: 1 results) Remarks (5 results)

  • [Journal Article] Application of phase-modulated dispersion interferometry to electron-density diagnostics of high-pressure plasma2014

    • Author(s)
      K. Urabe, T. Akiyama, and K. Terashima
    • Journal Title

      Journal of Physics D : Applied Physics

      Volume: 47 Issue: 26 Pages: 262001-262001

    • DOI

      10.1088/0022-3727/47/26/262001

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental and Numerical Investigations of Time-Evolution of Discharge Current and Optical Emission in Helium-Nitrogen Cryoplasmas2014

    • Author(s)
      H. Muneoka, K. Urabe, S. Stauss, and K. Terashima
    • Journal Title

      Plasma Sources Science and Technology

      Volume: 23 Issue: 6 Pages: 065038-065038

    • DOI

      10.1088/0963-0252/23/6/065038

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microscopic heterodyne interferometry for determination of electron density in high-pressure microplasma2014

    • Author(s)
      K. Urabe, H. Muneoka, S. Stauss, and K. Terashima
    • Journal Title

      Plasma Sources Science and Technology

      Volume: 23 Issue: 6 Pages: 064007-064007

    • DOI

      10.1088/0963-0252/23/6/064007

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hydrazine generation for reduction process using small-scale plasmasin argon/ammonia mixd gas flow2013

    • Author(s)
      K. Urabe, Y. Hiraoka, O. Sakai
    • Journal Title

      Plasma Sources Science and Technology

      Volume: 22 Issue: 3 Pages: 032003-032003

    • DOI

      10.1088/0963-0252/22/3/032003

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multi-heterodyne interference spectroscopy using probing optical frequency comb and reference single-frequency laser2013

    • Author(s)
      K. Urabe, O. Sakai
    • Journal Title

      Physical Review A

      Volume: 88 Issue: 2

    • DOI

      10.1103/physreva.88.023856

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamics of pulsed laser ablation in high-density carbon dioxide including supercritical fluid state2013

    • Author(s)
      K. Urabe, T. Kato, S. Stauss, S. Himeno, S. Kato, M. BabaT. Suemoto, K. Terashima
    • Journal Title

      Journal of Applied Physics

      Volume: 114 Issue: 14

    • DOI

      10.1063/1.4824538

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of Near-Infrared Laser Heterodyne Interferometry for the Diagnostics of Electron and Gas Number Densities in Microplasmas2013

    • Author(s)
      K. Urabe, H. Muneoka, S. Stauss, K. Terashima
    • Journal Title

      Applied Physics Express

      Volume: 6 Issue: 12 Pages: 126101-126101

    • DOI

      10.7567/apex.6.126101

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Absorption spectroscopy using interference between optical frequency comb and single-wavelength laser2012

    • Author(s)
      K. Urabe, 0. Sakai
    • Journal Title

      Applied Physics Letters

      Volume: 101 Issue: 5 Pages: 0511051-3

    • DOI

      10.1063/1.4742136

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] Phase-modulated dispersion interferometry for electron-density determination of high-pressure plasma2015

    • Author(s)
      Keiichiro URABE
    • Organizer
      67th Annual Gaseous Electronics Conference
    • Place of Presentation
      Raleigh, USA
    • Year and Date
      2015-11-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] 位相変調2倍高調波干渉計を用いた高気圧プラズマ電子密度診断研究とその展開2014

    • Author(s)
      占部継一郎
    • Organizer
      Plasma Conference 2014
    • Place of Presentation
      朱鷺メッセ(新潟)
    • Year and Date
      2014-11-18
    • Related Report
      2014 Annual Research Report
  • [Presentation] 位相変調2倍高調波干渉計による高気圧プラズマ電子密度計測2014

    • Author(s)
      占部継一郎
    • Organizer
      第75回応用物理学会秋季学術講演会
    • Place of Presentation
      北海道大学(札幌)
    • Year and Date
      2014-09-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] Development of near-infrared heterodyne interferometer for microplasma diagnostics generated at high pressure2014

    • Author(s)
      Keiichiro URABE
    • Organizer
      8^<th> International Conference on Reactive Plasmas
    • Place of Presentation
      福岡国際会議場(福岡市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Production and Relaxtion Processes of Metastable Helium Atoms in Cryoplasmas between 5 K and Room Temperature2014

    • Author(s)
      Keiichiro URABE
    • Organizer
      ISPlasma 2014 / IC-PLANTS 2014
    • Place of Presentation
      名城大学(名古屋市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Hydrazine generation and remote reduction process using DBD microplasmas in argon/ammonia mixed gas flow2013

    • Author(s)
      Keiichiro URABE
    • Organizer
      The 7^<th> International Workshop on Microplasmas
    • Place of Presentation
      Beijing, China
    • Related Report
      2013 Annual Research Report
  • [Presentation] Diode-laser heterodyne interferometer for measurement of electronand gas number densities in microplasmas2013

    • Author(s)
      Keiichiro URABE
    • Organizer
      16^<th> International Symposium on Laser Aided Plasma Diagnostics
    • Place of Presentation
      Madison USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] Plasma diagnostics using multi-heterodyne interferenceof optical frequency comb2013

    • Author(s)
      Keiichiro URABE
    • Organizer
      16^<th> International Symposium on Laser-Aided Plasma Diagnostics
    • Place of Presentation
      Madison, USA
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Dynamics of pulsed laser ablation in high-density C02 nearthe critical point investigated by time-resolved shadowgraph imaging2013

    • Author(s)
      Keiichiro URABE
    • Organizer
      66^<th> Annual Gaseous Electronics Conference
    • Place of Presentation
      Princeton USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] Diode laser heterodyne interferometry for refractive index measurement of small-scale plasmas in high-pressure gases2013

    • Author(s)
      Keiichiro URABE
    • Organizer
      66^<th> Annual Gaseous Electronics Conference
    • Place of Presentation
      Princeton USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] 近赤外レーザヘテロダイン干渉法によるマイクロプラズマ屈折率診断2013

    • Author(s)
      占部 継一郎
    • Organizer
      第23回日本MRS年会
    • Place of Presentation
      横浜開港記念会館(横浜市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Development of novel atomic absorption spectroscopic methodusing optical frequency comb2012

    • Author(s)
      Keiichiro Urabe
    • Organizer
      65th Gaseous Electronics Conference
    • Place of Presentation
      Austin (USA)
    • Year and Date
      2012-10-23
    • Related Report
      2012 Annual Research Report
  • [Presentation] Real-Time Spectroscopic Monitoring of Molecular Reaction Processin Atmospheric-Pressure Dielectric Barrier Discharge2012

    • Author(s)
      Keiichiro Urabe
    • Organizer
      11th APCPST / 25th SPSM
    • Place of Presentation
      京都大学(京都)
    • Year and Date
      2012-10-02
    • Related Report
      2012 Annual Research Report
  • [Presentation] Optical diagnostics of atmospheric-pressuredielectric barrier discharge for microstructured material sysnthesis2012

    • Author(s)
      Keiichiro Urabe
    • Organizer
      IUMRS-ICEM 2012
    • Place of Presentation
      パシフィコ横浜(横浜)
    • Year and Date
      2012-09-26
    • Related Report
      2012 Annual Research Report
  • [Presentation] 光周波数コム干渉分光法の開発とプラズマ診断(II)2012

    • Author(s)
      占部継一郎
    • Organizer
      第73回応用物理学会
    • Place of Presentation
      愛媛大学(松山)
    • Year and Date
      2012-09-13
    • Related Report
      2012 Annual Research Report
  • [Remarks] 東京大学 寺嶋研究室ホームページ

    • URL

      http://www.plasma.k.u-tokyo.ac.jp/index.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] 研究代表者個人のホームページ

    • URL

      https://sites.google.com/site/keiurabe0907/

    • Related Report
      2014 Annual Research Report
  • [Remarks] 東京大学 寺嶋研究室ホームページ

    • URL

      http://www.plasma.k.u-tokyo.ac.jp/index.html

    • Related Report
      2013 Annual Research Report
  • [Remarks] 個人の研究紹介ホームページ

    • URL

      https://sites.google.com/site/keiurabeO907/

    • Related Report
      2013 Annual Research Report
  • [Remarks]

    • URL

      https://sites.google.com/site/keiurabe0907/

    • Related Report
      2012 Annual Research Report

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Published: 2013-04-25   Modified: 2024-03-26  

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