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Three-dimensional topological photonics by ring resonators

Research Project

Project/Area Number 17K05507
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Condensed matter physics I
Research InstitutionNational Institute for Materials Science

Principal Investigator

OCHIAI Tetsuyuki  国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主幹研究員 (80399386)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsトポロジカルフォトニクス / リング共振器 / DBR pillar / 開放系 / 表面 / 状態密度 / フロケトポロジカル相 / domain wall / ギャップレス表面状態 / 対称性の破れ / 偶然縮退 / 有効ハミルトニアン / ドメイン壁 / フォトニック結晶
Outline of Final Research Achievements

One of the goals in this project is to realize theoretically three-dimensional topological phases of photons using ring resonators or related objects.
We have demonstrated theoretically that a three-dimensional tetragonal arrangement of core-shell pillars exhibits gapless surface (domain-wall) states of the Dirac or quadratic type, irrespective of surface orientations. We have also investigated the network models that describe light scattering among periodic arrangements of optical ring resonators, and have shown the emergence of Floquet end/corner states.

Academic Significance and Societal Importance of the Research Achievements

本研究はこれまで萌芽的であった光の3次元トポロジカル相を開拓したことに意義がある。
発熱性や量子効果によってムーアの法則の限界が予見される現状にあって、光集積回路が注目を集めて久しい。究極的な光制御のためには3次元構造が不可欠であるが、そこにトポロジカルな効果を埋め込むことで更なる新機能(構造のラフネスに対する頑強性、省エネ、光スピン操作など)が期待できる。本研究はこの方向に向けた着実な一歩といえる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (5 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Hybrid method of plane-wave and cylindrical-wave expansions for distributed Bragg-reflector pillars: formalism and its application to topological photonics2018

    • Author(s)
      T. Ochiai
    • Journal Title

      J. Opt. Soc. Am. B

      Volume: 35 Issue: 11 Pages: 2642-2653

    • DOI

      10.1364/josab.35.002642

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gapless surface states originating from accidentally degenerate quadratic band touching in a three-dimensional tetragonal photon crystal2017

    • Author(s)
      T. Ochiai
    • Journal Title

      Phys. Rev. A

      Volume: 96 Issue: 4

    • DOI

      10.1103/physreva.96.043842

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] Bound States in Continuum and Gapless Surface States by Distributed-Bragg-Reflector Pillars2019

    • Author(s)
      T. Ochiai
    • Organizer
      Frontier in Optics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bulk-edge correspondence in open photonic systems2019

    • Author(s)
      T. Ochiai
    • Organizer
      NH2019TD
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 電気磁気光学効果がある場合の first-order formalism による光輸送特性2018

    • Author(s)
      落合哲行
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 偶然縮退と対称性の破れによるギャップレス表面状態2018

    • Author(s)
      落合哲行
    • Organizer
      日本物理学会第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Gapless Domain-Wall States Originated from Accidentally Degenerate Quadratic Band Touching in a Three-Dimensional Photonic Crystal2017

    • Author(s)
      T. Ochiai
    • Organizer
      METANANO-2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2021-02-19  

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