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nonlinear optical responce from broken time reversal symmetry systems

Research Project

Project/Area Number 15K04704
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Optical engineering, Photon science
Research InstitutionNational Institute for Materials Science

Principal Investigator

Inoue Jun-ichi  国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 主幹研究員 (90323427)

Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords光誘起現象 / トポロジー / 量子ホール効果 / 光と物質の相互作用 / トポロジカル相 / フロケット状態 / 時間反転対称性のやぶれ / 非線形光学応答 / 動的対称性 / 時間依存問題
Outline of Final Research Achievements

In recent extensive studies of emergent phenomena in solid-state systems, alteration of the symmetry inherent to a given system by applying an external time-dependent field is a central issue. We have found that how the time reversal symmetry is broken is not solely determined by temporal aspects, but also committed to spatial symmetry of the system. This connection between spatial and temporal symmetries induces various interesting phenomena that have not yet been discussed. This work reports one of these: symmetry-protected band sticking together in an effective- energy band structure of periodically driven electron systems. However, this, in turn, leads to another difficulty that conventional topological numbers cease to be well-defined. As such, we propose an alternative that is a natural extension of the previous one. To show validity, we confirmed firm consistency with well-established concepts.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report

Research Products

(5 results)

All 2018 2017 2016

All Journal Article Presentation

  • [Journal Article] Floquet Engineered Quadri-partite Lattice System as an Extension of the Topological Haldane Model2018

    • Author(s)
      Jun-ichi Inoue
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 87 Issue: 3 Pages: 034711-034711

    • DOI

      10.7566/jpsj.87.034711

    • NAID

      210000134748

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Space-time Cooperative Symmetry in a Periodically Driven Tight Binding Model2017

    • Author(s)
      Jun-ichi Inoue
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 86 Issue: 2 Pages: 024713-024713

    • DOI

      10.7566/jpsj.86.024713

    • NAID

      210000134274

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Optical Waveguiding along a Sub-100-nm-Width Organic Nanofiber: Significant Effect of Cooling on Waveguiding Properties2016

    • Author(s)
      K. Takazawa, J. Inoue, K. Mitsuishi
    • Journal Title

      Journal of Physical Chemistry C

      Volume: 120 Pages: 1186-1192

    • DOI

      10.1021/acs.jpcc.5b10125

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 光駆動された電子系での時間と空間の協働対称性2017

    • Author(s)
      井上純一
    • Organizer
      第72回日本物理学会年次大会
    • Place of Presentation
      大阪大学
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] Emergence of cooperative time-reversal and glide symmetry in a laser driven system2017

    • Author(s)
      Jun-ichi Inoue
    • Organizer
      18th International Conference on Physics of Light-Matter Coupling in Nanostructures
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2019-03-29  

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