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Creation of innovative terahertz optical elements developed by 3D bulk metamaterials

Research Project

Project/Area Number 21H04659
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 30:Applied physics and engineering and related fields
Research InstitutionTohoku University

Principal Investigator

Kanamori Yoshiaki  東北大学, 工学研究科, 教授 (10333858)

Co-Investigator(Kenkyū-buntansha) 松原 正和  東北大学, 理学研究科, 准教授 (50450648)
岡谷 泰佑  東北大学, 工学研究科, 助教 (80881854)
Project Period (FY) 2021-04-05 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥43,680,000 (Direct Cost: ¥33,600,000、Indirect Cost: ¥10,080,000)
Fiscal Year 2023: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Fiscal Year 2022: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2021: ¥29,510,000 (Direct Cost: ¥22,700,000、Indirect Cost: ¥6,810,000)
Keywordsメタマテリアル / 光デバイス / マイクロ・ナノデバイス
Outline of Research at the Start

テラヘルツ領域では光学素子に利用可能な材料が乏しく、加工容易かつ幅広い屈折率特性を有する新規材料が求められている。本研究では、自由な形状に形成可能かつ任意の屈折率特性を有するテラヘルツ光学素子の実現を目指す。
本研究は、シミュレーションを用いたメタマテリアル単位構造の設計、メタマテリアル単位構造の製作・評価、3次元バルクメタマテリアルの製作・評価、3次元バルクメタマテリアルを用いた光学素子の設計・製作・評価、メタマテリアル単位構造の有効媒質近似モデル構築等に分けて進める。

Outline of Final Research Achievements

We have developed a metamaterial grain that can be supplied as a grain and has a metamaterial unit structure smaller than the wavelength of terahertz waves encapsulated in polymer grains. By placing metamaterial grains in a mold and molding them, we succeeded in fabricating a three-dimensional bulk metamaterial. We designed and fabricated split ring resonators, metal-dielectric-metal stacked metamaterials, and dielectric metamaterials as metamaterial unit structures, and realized three-dimensional bulk metamaterials using them. The metamaterial unit structures are randomly distributed in three dimensions. We succeeded in artificially changing the refractive index at frequencies expected for the next-generation mobile communication system "Beyond 5G / 6G."

Academic Significance and Societal Importance of the Research Achievements

3次元バルクメタマテリアルの概念を新たに提唱し、設計・製作方法を確立し、テラヘルツ領域において屈折率を人工的に制御できたことの学術的意義は大きい。また、社会的にも今回開発したメタマテリアルは固体の粉末材料として供給可能なため、金型成形や切削加工などの機械加工により、メタマテリアルを自由に加工してテラヘルツ光学素子を実現できる点が画期的である。これらの利点を活かし、Beyond5G/6G の通信技術をはじめ、医療・バイオ・農業・食品・環境・セキュリティなど幅広い分野での応用が大いに期待される。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Comments on the Screening Results   Annual Research Report
  • Research Products

    (11 results)

All 2024 2023 2022 2021 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] Reconfigurable THz metamaterial based on microelectromechanical cantilever switches with a dimpled tip2023

    • Author(s)
      Huang Ying、Okatani Taiyu、Inomata Naoki、Kanamori Yoshiaki
    • Journal Title

      Optics Express

      Volume: 31 Issue: 18 Pages: 29744-29754

    • DOI

      10.1364/oe.497514

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A reconfigurable ladder-shaped THz metamaterial integrated with a microelectromechanical cantilever array2023

    • Author(s)
      Huang Ying、Okatani Taiyu、Inomata Naoki、Kanamori Yoshiaki
    • Journal Title

      Applied Physics Letters

      Volume: 122 Issue: 5 Pages: 051705-051705

    • DOI

      10.1063/5.0124601

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Terahertz 3D bulk metamaterials with randomly dispersed split-ring resonators2022

    • Author(s)
      Okatani Taiyu、Sunada Yuto、Hane Kazuhiro、Kanamori Yoshiaki
    • Journal Title

      Nanophotonics

      Volume: - Issue: 9 Pages: 2065-2074

    • DOI

      10.1515/nanoph-2021-0703

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Broadband stop filters for THz waves using H-shaped metamaterials with dual electronic-plasmonic functionality2022

    • Author(s)
      Huang Ying、Okatani Taiyu、Kanamori Yoshiaki
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 61 Issue: SD Pages: SD1007-SD1007

    • DOI

      10.35848/1347-4065/ac55dd

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] テラヘルツ波制御材料としてのシリコンマイクロ粒子分散体の製作2024

    • Author(s)
      脇内 駿,岡谷泰佑,猪股直生,金森義明
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] メタマテリアルのためのマイクロ・ナノマシニング技術の開発2023

    • Author(s)
      金森義明
    • Organizer
      第11回マイクロ・ナノ加工研究会公開講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 分割リング共振器を内包する等方性 3 次元バルクメタマテリアル2022

    • Author(s)
      岡谷 泰佑,砂田 悠斗,羽根 一博,金森 義明
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] インクジェット印刷を用いたフレキシブルメタマテリアルの製作と透過特性評価2022

    • Author(s)
      木田 喬仁,岡谷 泰佑,猪股 直生,金森 義明
    • Organizer
      2022年度精密工学会東北支部学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Beyond 5G/ 6G に向けたメタマテリアル2022

    • Author(s)
      金森義明
    • Organizer
      第20回MEMS集中講義
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Broadband stop filters using H-shaped metamaterial at the THz region2021

    • Author(s)
      Ying Huang, Taiyu Okatani, Yoshiaki Kanamori
    • Organizer
      34th International Microprocesses and Nanotechnology Conference (MNC 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 金森・岡谷研究室

    • URL

      https://web.tohoku.ac.jp/kanamori/index.html

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report 2021 Annual Research Report

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

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