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Development of high-sensitive silicon image sensor in near-infrared region by plasmonic transmission with large angle

Research Project

Project/Area Number 22K18984
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 30:Applied physics and engineering and related fields
Research InstitutionShizuoka University

Principal Investigator

Ono Atsushi  静岡大学, 電子工学研究所, 教授 (20435639)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywords表面プラズモン / イメージセンサ / 回折格子 / 近赤外 / シリコンイメージセンサ
Outline of Research at the Start

本研究は,自動運転技術や通信技術,生体計測技術など,昨今重要視されている近赤外イメージセンサの分野において,シリコンイメージセンサの近赤外感度を大幅に向上する技術革新をもたらすことに挑戦する研究である.プラズモニクスと呼ばれる光学分野とイメージセンサの電子工学分野との融合を図ることにより課題解決に取り組む.

Outline of Final Research Achievements

This research challenges to bring the technological innovation that is significant improvement of silicon image sensors in near-infrared region, which is recently attracted in automatic driving technology, communication technology, and bioinstrumentation technology. As one of the goal in this research project, we aim to dramatically improve the sensitivity so that the silicon absorption efficiency at 940 nm is more than 50%, which is equivalent to that in the visible range. By considering a back-illuminated silicon image sensor, we proposed photon confinement in a silicon absorption layer by plasmonic diffraction. We clarified by the simulation that the absorption efficiency is achieved to be 53.3% at a wavelength of 940 nm.

Academic Significance and Societal Importance of the Research Achievements

本研究は,表面プラズモン共鳴よりもわずかに短波長側の回折条件にて構造設計することにより,90度近い大きな回折角度と50%近い高い回折効率のプラズモニック回折が起きることを明らかにしたものであり,準表面プラズモン共鳴という新たな概念を提唱した.
本概念をシリコンイメージセンサの近赤外感度向上技術に応用することにより,TOFセンサなどの低照度化,低消費電力化,高解像度化,高速化など現行に対して革新的技術をもたらすことが期待される.

Report

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

    (8 results)

All 2023 2022

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results)

  • [Journal Article] Photon confinement in a silicon cavity of an image sensor by plasmonic diffraction for near-infrared absorption enhancement2022

    • Author(s)
      Yoshinaga Takahito、Hashimoto Kazuma、Teranishi Nobukazu、Ono Atsushi
    • Journal Title

      Optics Express

      Volume: 30 Issue: 20 Pages: 35516-35516

    • DOI

      10.1364/oe.472401

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Near-infrared sensitivity enhancement of silicon image sensor with wide incident angle2023

    • Author(s)
      Atsushi Ono, Takahito Yoshinaga, Kazuma Hashimoto, and Nobukazu Teranishi
    • Organizer
      2023 International Image Sensor Workshop (IISW2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quasi-resonance of surface plasmons for near-infrared sensitivity improvement of silicon image sensor2023

    • Author(s)
      Atsushi Ono, Takahito Yoshinaga, Kazuma Hashimoto, and Nobukazu Teranishi
    • Organizer
      META2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 表面プラズモンを利用したシリコンイメージセンサの近赤外感度向上技術2023

    • Author(s)
      小野篤史
    • Organizer
      次世代画像入力ビジョンシステム部会定例会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] プラズモニック回折格子を用いたシリコンイメージセンサの近赤外吸収効率の向上2022

    • Author(s)
      吉永崇仁,橋本和磨,寺西信一,小野篤史
    • Organizer
      レーザー学会中部支部2022年度若手研究発表会
    • Related Report
      2022 Research-status Report
  • [Presentation] Photon Confinement by Plasmonic Diffraction for Near-Infrared Sensitivity Improvement of Silicon Image Sensor2022

    • Author(s)
      Takahito Yoshinaga, Kazuma Hashimoto, Nobukazu Teranishi, and Atsushi OnoTakahito Yoshinaga, Kazuma Hashimoto, Nobukazu Teranishi, and Atsushi Ono
    • Organizer
      Optics & Photonics Taiwan International Conference (OPTIC) 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Near-Infrared Sensitivity Enhancement of Silicon Image Sensor by Photon Confinement with Plasmonic Diffraction2022

    • Author(s)
      Takahito Yoshinaga, Kazuma Hashimoto, Nobukazu Teranishi, and Atsushi Ono
    • Organizer
      2022 International Conference on Solid State Devices and Materials(SSDM2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] プラズモニック回折構造によるシリコンイメージセンサの近赤外感度向上2022

    • Author(s)
      吉永崇仁,橋本和磨,寺西信一,小野篤史
    • Organizer
      光学シンポジウム
    • Related Report
      2022 Research-status Report

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Published: 2022-07-05   Modified: 2025-01-30  

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