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Research on optical properties of warm dense matter using ultra-short-pulse lasers

Research Project

Project/Area Number 13480123
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field プラズマ理工学
Research InstitutionThe University of Electro-Communications

Principal Investigator

YONEDA Hitoki  The University of Electro-Communications, Institute for Laser Science, レーザー新世代研究センター, 助教授 (00210790)

Co-Investigator(Kenkyū-buntansha) M.MORE Richard  The University of Electro-Communications, National Institute for Fusion Science, professor, 連携推進研究センター, 教授 (50321617)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥14,800,000 (Direct Cost: ¥14,800,000)
Fiscal Year 2003: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2002: ¥5,300,000 (Direct Cost: ¥5,300,000)
Fiscal Year 2001: ¥6,300,000 (Direct Cost: ¥6,300,000)
KeywordsUltra-short pulse laser / high energy density matter / warm dense matter / Pump probe / localization / complex dielectric constant / metal-insulator transition / strongly coupled plasma / 輪送過程 / フォノン緩和 / 電子イオン衝突周波数
Research Abstract

The purpose of this research is to explore properties of matter at novel conditions. Using ultra-short pulse lasers, we produce and study matter at high energy density, corresponding to temperatures of 1,000〜100,000 Kelvin. Although very high energy densities can be created by various laboratory technologies, the resulting pressure is too high to confine and the heated material expands rapidly. For this reason it is important to develop high-speed (dynamic) diagnostic techniques.
Short-pulse laser pump-probe experiments can now be performed with high repetition rate and give a continuous time scan of target reflectivity changes during and after the heat pulse. The probe pulse duration provides a time resolution 100fsec. A single reflected probe pulse yields four signals, which characterize the elliptic polarization of the reflected light, a technique called "ellipsometry". We also have developed new computer tools to analyze or interpret the results.
In the analysis of experiments on low … More -temperature gold plasmas, we found evidence for a strong reduction of free-electron electrical conductivity consistent with localization of electrons. Solutions of the Saha equation predict an anomalous plasma composition in which positive ions Au+ and negative ions Au- are balanced with very few free electrons. Evidence for anomalous low conductivity in low-temperature plasmas has emerged from other experimental techniques including direct measurement of DC conductivities in pulse-heated systems such as wire arrays, capillaries, etc. Under certain circumstances, quantum molecular-dynamic simulations also predict low conductivity.
This work is not yet ready to discuss the details in the warm dense matter. Rather we are making a first quantitative exploration with the goal of identifying the main physical phenomena, especially as regards metal-insulator transitions, applicability of basic ideas of plasma EOS, Drude conductivity, etc.
In near future, we will have a database of many atomic polarizabilities and dielectric functions for real materials, data qualified by comparison to experiments. Less

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (27 results)

All 2005 2004 2003 2002 Other

All Journal Article (15 results) Publications (12 results)

  • [Journal Article] Ultra-Short Pulse Laser pump-probe experiments for investigation of warm dense plasmas2005

    • Author(s)
      H.Yoneda, H.Morikami, K.Ueda, R.M.More
    • Journal Title

      J.Quant. Spectr. and Rad.Transfer (to be submitted)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Short Pulse Laser interactions and electron dynamics in warm dense matter2005

    • Author(s)
      R.M.More, H.Yoneda, H.Morikami
    • Journal Title

      J.Quant. Spectr. and Rad.Transfer (to be submitted)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Ultra-Short Pulse Laser pump-probe experiments for investigation of warm dense plasmas2005

    • Author(s)
      H.Yoneda, H.Morikami, K.Ueda, R.M.More
    • Journal Title

      submitted to JQSRT

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Short Pulse Laser interactions and electron dynamics in warm dense matter2005

    • Author(s)
      R.M.More, H.Yoneda, H.Morikami
    • Journal Title

      submitted to JQSRT

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Detection of hydrodynamic expansion in ultrashort pulse laser ellipsometric pump-probe experiments2004

    • Author(s)
      Hidetoshi Morikami, Hitoki Yoneda, Ken-ichi Ueda, Richard.M.More
    • Journal Title

      Phys.Rev.E, 70

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Detection of hydrodynamic expansion in ultrashort pulse laser ellipsometric pump-probe experiments2004

    • Author(s)
      Hidetoshi Morikami, Hitoki Yoneda, Ken-ichi Ueda, Richard.M.More
    • Journal Title

      Phys.Rev.E. Vol.70, No.2

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Ultrashort-Pulse Laser Ellipsometric Pump-Probe Experiments on Gold Targets2003

    • Author(s)
      H.Yoneda, H.Morikami, K.Ueda, R.M.More
    • Journal Title

      Phys.Rev.Lett. 91

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Optical Constants of Ultra-Short-Pulse Laser Heated Metal,2003

    • Author(s)
      H.Yoneda, H.Morikami, K.Ueda, R.M.More
    • Journal Title

      J.Plasma and Fusion Research 79

      Pages: 449-451

    • NAID

      130000133801

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Ultrashort-Pulse Laser Ellipsometric Pump-Probe Experiments on Gold Targets2003

    • Author(s)
      H.Yoneda, S.Ohta, K.Ueda, R.M.More
    • Journal Title

      Phys.Rev.Lett. 91

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Optical Constants of Ultra-Short-Pulse Laser Heated Metal2003

    • Author(s)
      H.Yoneda, S.Ohta, K.Ueda, R.M.More
    • Journal Title

      J.Plasma and Fusion Research Vol.79.No.5

      Pages: 449-451

    • NAID

      130000133801

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Review of Atomic Physics of Dense Plasmas2003

    • Author(s)
      R.More
    • Journal Title

      Plenary talk in 45th APS-DPP Meeting, Bull.Am.Phys.Soc. 48-7

      Pages: 330-330

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Atomic Processes and High-Power Radiation2003

    • Author(s)
      R.More, H.Yoneda
    • Journal Title

      AIP conference Proceeding 634, Science of Superstrong field interactions, (INVITED papers) 634

      Pages: 139-146

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Study of optical properties of ultra-short-pulse laser heated material,2002

    • Author(s)
      H.Yoneda, S.Ohta, K.Ueda, R.M.More
    • Journal Title

      SPIE Proceeding : 3rd Int.Syn.On Laser Precision Microfabrication, 4830

      Pages: 447-450

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Study of optical properties of ultra-short-pulse laser heated material2002

    • Author(s)
      H.Yoneda, S.Ohta, K.Ueda, R.M.More
    • Journal Title

      SPIE Proceeding : 3rd Int.Syn. On Laser Precision Microfabrication 4830

      Pages: 447-450

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Method of charge-state analysis of fast ions matter based on their x-ray spectral distribution2002

    • Author(s)
      F.B.Rosmej, R.More, et al.
    • Journal Title

      Laser and Part.Beams 20

      Pages: 479-485

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] H.Yoneda, K.Hasegawa, H.Nagata, H.Hennywati, K.Ueda: "Coherent added Diamond photoconductive Switch Array for High-Peak-Power THz Radiation"Proc.of 11th Int.Conf.on Terahertz Electronics. 110-110 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Yoneda, H.Morikami, K.Ueda, R.M.More: "Ellipsometric Pump-probe Experiments for High Density Plasma with Ultra-short pulse lasers"Bull, of the American Physics Society. Vol.48-7. 24-24 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] R.M.More: "Review of Atomic Physics of Dense Plasmas"Bull, of the American Physics Society. Vol.48-7. 330-330 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Yoneda, H.Morikami, K.Ueda, R.M.More: "Ultrashort-Pulse Laser Ellipsometric Pump-Probe Experiments on Gold Targets"Phys.Rev.Lett.. 91. 075004-1-075004-4 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] H.Yoneda, H.Morikami, K.Ueda, R.M.More: "Optical Constants of Ultra-Short-Pulse Laser Heated Metal"J.Plasma and Fusion Research. Vol.79.No.5. 449-451 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 米田仁紀: "光・物理学の基礎"Laser Expo2004特別セミナー講演集. A-1 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] R.M.More, H.Yoneda: "Atomic Processes and High-Power Radiation"AIP conference Proceeding 634,Science of Superstrong field interactions. 634. 139-146 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Yoneda: "Introduction Physics related to ultra-short-pulse laser plasma"AIP conference Proceeding 634,Science of Superstrong field interactions. 634. 372-379 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Yoneda, S.Ohta, K.Ueda, R.M.More: "Study of optical properties of ultra-short-pulse laser heated material"SPIE Proceeding : 3^<rd> Int. Syn. On Laser Precision Microfabrication. 4830. 447-451 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] H.Yoneda, et al.: "Study on optical properties of ultra-short-pulse laser heated materials"Bull. of the Am. Phys. Soc.. Vol.46-8. 204 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Yoneda, et al.: "High-power terahertz radiation emitter with diamond photoconductive switch array"Appl. Opt.. 40-36. 6733-6737 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 米田仁紀: "フェムト秒レーザー加工のダイナミックス"光技術動向調査報告書. XVII. 509-515 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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