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High-resolution infrared image transport by Anderson localization optical fibers

Research Project

Project/Area Number 19H02203
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionToyota Technological Institute

Principal Investigator

Suzuki Takenobu  豊田工業大学, 工学(系)研究科(研究院), 准教授 (60367828)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2021: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Keywords赤外透過ガラス / 光ファイバ / 赤外イメージング / 光のアンダーソン局在 / 画像伝送 / アンダーソン局在 / イメージ伝送 / 赤外イメージ伝送
Outline of Research at the Start

現在,可視光イメージファイバを用いた内視鏡によって体内を直接的に観察し,患者への負担の少ない検査・手術が広く行われている.高解像度の赤外イメージ伝送が可能になれば,血管内の画像や人体内のサーモグラフィーが実現し,新たな診断・治療方法を提供することができる.既存のイメージファイバは赤外透過性の低い材料を使用していることと周期的な構造を有するために波長の長い赤外光を高解像度で伝送することはできない.本研究課題では赤外光透過性の高い新規なガラス材料と断面方向にランダムな構造を有するファイバによるアンダーソン局在を用いて,極めて高い解像度の赤外イメージ伝送を実現することを目指す.

Outline of Final Research Achievements

It is known that tellurite glass can transmit longer wavelength infrared light than conventional silica glass. We have prepared a tellurite transversely disordered optical fiber (TDOF) without voids from a hollow tube depressurized the inside during the fiber drawing process. Infrared image transmission at a wavelength of 1.5 microns has been successfully achieved with the fabricated TDOF. In conventional TDOFs, deviation in the refractive index distribution cannot be avoided. We have proposed a new structure in which rods of different species are adjacent to each other, and improved the average structural similarity index of transmitted images. Chalcognide glasses are known for their charecterisitic of transmision of mid-infrared light up to a wavelength of about 10 microns. We have sucessfully prepared a chalcogenide TDOF with no voids. We have demonstrated image transmission by TDOF with mid-infrared light with a wavelength of 3 microns.

Academic Significance and Societal Importance of the Research Achievements

本研究では,赤外光をよく透過する新規なガラス材料を用いて,光を狭い領域に閉じ込めることができるランダムな屈折率分布を持つファイバを作製し,赤外イメージ伝送が可能であることを実証した.近年,医療分野では手術や検査による患者への負担を減らすことが求められており,可視光イメージファイバを利用した手術や検査の件数が増加している.赤外イメージファイバにを用いることで体内の温度分布が直接的に観察することができるようになり,医師の経験と勘によらない診断が可能になるものと期待される.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (10 results)

All 2022 2021 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Transverse Anderson localization of mid-infrared light in a chalcogenide transversely disordered optical fiber2022

    • Author(s)
      Nakatani Asuka、Tong Hoang Tuan、Matsumoto Morio、Sakai Goichi、Suzuki Takenobu、Ohishi Yasutake
    • Journal Title

      Optics Express

      Volume: 30 Issue: 4 Pages: 5159-5166

    • DOI

      10.1364/oe.450864

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Observation of transverse Anderson localization of mid-infrared light in a chalcogenide transversely disordered optical fiber2021

    • Author(s)
      Asuka Nakatani, Tong Hoang Tuan, Morio Matsumoto, Goichi Sakai, Takenobu Suzuki, and Yasutake Ohishi
    • Organizer
      Conference on Lasers and Electro-Optics (CLEO) 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] カルコゲナイド偏波保持ファイバの波長分散制御2021

    • Author(s)
      河村英果, Tong Hoang Tuan, 松本守男, 堺豪一, 鈴木健伸, 大石泰丈
    • Organizer
      The 31st Meeting on Glasses for Photonics 2021
    • Related Report
      2020 Annual Research Report
  • [Presentation] テルライト・カルコゲナイドガラスを用いたランダム断面構造光ファイバによる赤外イメージ伝送2021

    • Author(s)
      4.中谷明日佳, Tong Hoang Tuan, 畔柳俊英, 松本守男, 堺豪一, 鈴木健伸, 大石泰丈
    • Organizer
      光ファイバ応用技術研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Fabrication of chalcogenide transversely disordered optical fiber for mid-infrared image transport2020

    • Author(s)
      4.A. Nakatani, T. H. Tuan, H. Isai, M. Matsumoto, G. Sakai, T. Suzuki, and Y. Ohishi
    • Organizer
      CLEO2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] カルコゲナイドランダム断面構造光ファイバよる中赤外光導波2020

    • Author(s)
      明日佳, Tong Hoang Tuan, 松本守男, 堺 豪一, 鈴木健伸, 大石泰丈
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Refractive index dispersion of arsenic sulfide and selenide glasses for visible to mid-infrared wavelength,2020

    • Author(s)
      Takenobu Suzuki, Ayaka Komura, Asuka Nakatani, Morio Matsumoto, Hiroshige Tezuka, and Yasutake Ohishi
    • Organizer
      ICOOPMA 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of chalcogenide transversely disordered optical fiber for mid-infrared image transport2020

    • Author(s)
      Asuka Nakatani, Tong Hoang Tuan, Hayato Isai, Morio Matsumoto, Goichi Sakai, Takenobu Suzuki, and Yasutake Ohishi
    • Organizer
      CLEO2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新規構造のテルライトランダム断面構造光ファイバによる赤外イメージ伝送品質の向上2019

    • Author(s)
      中谷明日香,Tong Hoang Tuan, 鈴木健伸,大石泰丈
    • Organizer
      第60回ガラスおよびフォトニクス材料討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 低融点ガラス特殊ファイバの作製と赤外応用2019

    • Author(s)
      鈴木健伸, 大石泰丈
    • Organizer
      2019年電子情報通信学会ソサイエティ大会
    • Related Report
      2019 Annual Research Report
    • Invited

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Published: 2019-04-18   Modified: 2023-01-30  

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