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Novel plasmonic optics using non-Hermitian photonics

Research Project

Project/Area Number 21K14551
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 30020:Optical engineering and photon science-related
Research InstitutionTokyo Institute of Technology

Principal Investigator

Moritake Yuto  東京工業大学, 理学院, 助教 (50783049)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsナノフォトニクス / プラズモニクス / フォトニック結晶 / 非エルミート系 / 相変化材料 / メタマテリアル
Outline of Research at the Start

近年、盛んになっている「非エルミート光学系」では例外点をまたいだPT相転移と呼ばれる現象が現れ、その特異な性質を利用した新たな原理の光学現象・機能の研究が行われている。本研究では、この例外点における特異な固有状態に着目し、単一の円偏光のみを固有状態にもつ光学系を結合プラズモニック共振器によって実験的に実現することで、動的に変調可能なプラズモニック光学素子を開発する。

Outline of Final Research Achievements

In this study, we proposed and demonstrated a novel optical device using a non-Hermite optical system. Using graphene-loaded photonic crystals, we demonstrated a chiral property of exceptional points. We also proposed that this chiral response can be used for high-sensitivity sensing. As a modulation technique for dynamic optical response, we developed experimental techniques about GST and applied it to nanophotonic structures to realize dynamic modulation of optical response. Furthermore, we proposed a switchable unidirectional radiation phenomenon using exceptional points. We proposed a method for generating optical orbital angular momentum with a localization phenomenon unique to non-Hermite systems.

Academic Significance and Societal Importance of the Research Achievements

本研究で開発した非エルミート性による光機能は、従来の光学素子の高機能化や、新しい光機能につながるものである。また、GSTによる光学応答の動的変調技術は、光回路等で必要な光スイッチなどのデバイス応用にむけた重要な要素技術である。これらにより、例えば、低消費エネルギーなデバイスや高感度な生化学センサ等の開発につながる。

Report

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

    (32 results)

All 2024 2023 2022 2021

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (28 results) (of which Int'l Joint Research: 12 results,  Invited: 8 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Nanocavity tuning and formation controlled by the phase change of sub-micron-square GST patterns on Si photonic crystals2024

    • Author(s)
      Uemura Takahiro、Chiba Hisashi、Yoda Taiki、Moritake Yuto、Tanaka Yusuke、Ono Masaaki、Kuramochi Eiichi、Notomi Masaya
    • Journal Title

      Optics Express

      Volume: 32 Issue: 2 Pages: 1802-1802

    • DOI

      10.1364/oe.510757

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Large transmittance contrast via 90-degree sharp bends in square lattice glide-symmetric photonic crystal waveguides2024

    • Author(s)
      Dai Wei、Yoda Taiki、Moritake Yuto、Notomi Masaya
    • Journal Title

      Optics Express

      Volume: 32 Issue: 3 Pages: 3946-3946

    • DOI

      10.1364/oe.513685

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Switchable Unidirectional Radiation from Huygens Dipole Formed at an Exceptional Point in Non-Hermitian Plasmonic Systems2023

    • Author(s)
      Moritake Yuto、Notomi Masaya
    • Journal Title

      ACS Photonics

      Volume: 10 Issue: 3 Pages: 667-672

    • DOI

      10.1021/acsphotonics.2c01692

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ナノフォトニクスを用いたトポロジカル・非エルミート系の物理と機能2024

    • Author(s)
      森竹勇斗、養田大騎士、納富雅也
    • Organizer
      レーザ学会学術講演会第44回年次大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] k・p摂動に基づく映進/時間反転対称フォトニック結晶導波路における例外点の解析2024

    • Author(s)
      上村 高広、養田 大騎、森竹 勇斗、大塚 秀太郎、高田 健太、納富 雅也
    • Organizer
      第71回日本応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] GaN多角形中空ナノワイヤ構造を用いた光軌道角運動量生成2024

    • Author(s)
      来馬 龍治、滝口 雅人、Haidt Peter、森竹 勇斗、納富 雅也
    • Organizer
      第71回日本応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 相変化薄膜材料装荷ナノ共振器による反PT対称性の透過スペクトル解析2024

    • Author(s)
      堀口 義仁、上村 高広、養田 大騎、森竹 勇斗、小野 真証、倉持 栄一、納富 雅也
    • Organizer
      第71回日本応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] MT対称性をもつ媒質における光非エルミートスキン効果によるOAM生成2024

    • Author(s)
      武田 稜成、養田 大騎、森竹 勇斗、高田 健太、納富 雅也
    • Organizer
      第71回日本応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Jones行列の固有偏光状態を用いたプラズモニック例外点センサの提案2024

    • Author(s)
      森竹 勇斗、川崎 大輝、田中 拓男、納富 雅也
    • Organizer
      第71回日本応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] PT-symmetric non-Hermitian plasmonic systems for switchable radiation control2023

    • Author(s)
      Y. Moritake
    • Organizer
      The 13th International Conference of Metamaterials, Photonic Crystals and Plasmonics META’23
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topologically protected plasmonic edge states in metallic nanostructures2023

    • Author(s)
      Y. Moritake
    • Organizer
      The 9th International Conference on Antennas and Electromagnetic Systems AES2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fourier plane imaging spectroscopy for visualization of topological photonic band structures2023

    • Author(s)
      Yuto Moritake, Taiki Yoda, Masaaki Ono, Eiichi Kuramochi, and Masaya Notomi
    • Organizer
      IMC20
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Visualizing propagation of valley-polarized plasmonic edge mode by cathodoluminescence2023

    • Author(s)
      Hikaru Saito, Daichi Yoshimoto, Yuto Moritake, Taeko Matsukata, Naoki Yamamoto, and Takumi Sannomiya
    • Organizer
      IMC20
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Non-Hermitian Chirality and Topological Properties of Graphene-Loaded Photonic Crystals2023

    • Author(s)
      Satoshi Suzuki, Syutaro Otsuka, Yuto Moritake, Taiki Yoda, Takahiro Uemura, Masaaki Ono, Eiichiro Kuramochi, and Masaya Notomi
    • Organizer
      CLEO2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental Demonstration of Reconfigurable Photonic Topological Phase Transition With Phase-Change Materials2023

    • Author(s)
      Takahiro Uemura, Yuto Moritake, Taiki Yoda, Hisashi Chiba, Yusuke Tanaka, Masaaki Ono, Eiichi Kuramochi and Masaya Notomi
    • Organizer
      CLEO2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 非エルミート表皮効果を示す異方性フォトニック結晶スラブの励振2023

    • Author(s)
      高田 健太、養田 大騎、森竹勇斗、納富雅也
    • Organizer
      第84回日本応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] MT対称性をもつ媒質における光非エルミートスキン効果の解析2023

    • Author(s)
      森竹勇斗、養田 大騎、高田 健太、納富雅也
    • Organizer
      第84回日本応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 非エルミートフォトニック結晶の対称性を利用した例外点の波数空間制御2023

    • Author(s)
      鈴木 聡、大塚 秀太郎、上村 高広、養田 大騎、森竹勇斗、小野 真証、倉持 栄一、納富雅也
    • Organizer
      第84回日本応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Ge2Sb2Te5の選択的装荷による光トポロジカル相転移の実験的実証2023

    • Author(s)
      上村 高広、千葉 永、養田 大騎、森竹勇斗、田中 祐輔、小野 真証、倉持 栄一、納富雅也
    • Organizer
      第84回日本応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] フォトニック結晶導波路上へのGe2Sb2Te5パターニングによる共振器形成2023

    • Author(s)
      上村 高広、千葉 永、養田 大騎、森竹勇斗、田中 祐輔、小野 真証、倉持 栄一、納富雅也
    • Organizer
      第84回日本応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Reconfigurable Nanophotonics and Topological Photonics using Phase-change Materials2023

    • Author(s)
      M. Notomi, T. Uemura, Y. Tanaka, Y. Moritake
    • Organizer
      SPIE Photonics West 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Visualization of photonic topological edge states in 1D and 2D plasmonic structures in the optical region2022

    • Author(s)
      Y. Moritake
    • Organizer
      The 12th International Conference of Metamaterials, Photonic Crystals and Plasmonics META’22
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Radiation control with exceptional points in non-Hermitian plasmonic systems2022

    • Author(s)
      Y. Moritake
    • Organizer
      The 8th International Conference on Antennas and Electromagnetic Systems AES2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Singular photonic states and functionalities in non-Hermitian photonic systems2022

    • Author(s)
      Y. Moritake
    • Organizer
      Metamaterials and Plasmonics World Forum PlasmoMat2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Optical non-Hermitian skin effect in continuous media2022

    • Author(s)
      Taiki Yoda, Yuto Moritake, Kazuki Yokomizo, Shuichi Murakami, Masaya Notomi
    • Organizer
      CLEO-PR2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Chiral response observed at exceptional points in graphene-loaded photonic crystals2022

    • Author(s)
      Syutaro Otsuka, Yuto Moritake, Taiki Yoda, Takahiro Uemura, Masaaki Ono, Eiichi Kuramochi, Masaya Notomi
    • Organizer
      CLEO-PR2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 連続媒質における光の非エルミートスキン効果2022

    • Author(s)
      養田 大騎、森竹勇斗、横溝 和樹、村上 修一、納富 雅也
    • Organizer
      第69回日本応用物理学会春季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 異方的メタ表面における光非エルミートスキン効果の検討2022

    • Author(s)
      森竹勇斗、養田 大騎、納富 雅也
    • Organizer
      第69回日本応用物理学会春季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Switchable Polarization Eigenstates in non-Hermitian Plasmonic Systems With Phase Change Materials2021

    • Author(s)
      Y. Moritake and M. Notomi
    • Organizer
      CLEO2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 非エルミートプラズモニック系における例外点を用いたホイヘンスダイポールの形成2021

    • Author(s)
      森竹勇斗、納富雅也
    • Organizer
      第82回日本応用物理学会秋季学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] グラフェン装荷フォトニック結晶における非Γ点での例外点の検討2021

    • Author(s)
      大塚 秀太郎、上村 高広、養田 大騎、森竹 勇斗、納富 雅也
    • Organizer
      第82回日本応用物理学会秋季学術講演会
    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] 光化学センサ装置2024

    • Inventor(s)
      森竹勇斗、納富雅也
    • Industrial Property Rights Holder
      森竹勇斗、納富雅也
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2024-031558
    • Filing Date
      2024
    • Related Report
      2023 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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