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High extraction efficiency of single photon emission from individual carbon nanotubes

Research Project

Project/Area Number 20K15199
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 InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Yamashita Daiki  国立研究開発法人理化学研究所, 光量子工学研究センター, 訪問研究員 (40858099)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywordsカーボンナノチューブ / フォトニック結晶 / シリコンフォトニクス / 微小共振器 / 単一光子源 / 光物性 / 二次元材料 / ナノマイクロ物理 / ナノチューブ・グラフェン / ナノ構造物性 / ナノ物性制御
Outline of Research at the Start

半導体単層カーボンナノチューブ(CNT)は,量子情報通信,計測,計算といったさまざまな技術領域にとって重要な構成要素である単一光子源の候補として期待されている.このCNT単一光子源の応用性を高めるために,CNTから発生した単一光子を高効率に光集積回路へ取り込むことは重要である.本研究では,そのようなCNT単一光子源の高効率光取り出しが可能なデバイスの作製とその評価を行う.CNTが持つ,清純なCNTであれば全て単一光子源として利用できる点,シリコン基板上に成長可能で,シリコンフォトニクスとの親和性が高い点,これら2つの特徴を活かすことで,シリコンチップ上に集積された,室温で動作する通信波長帯の単一光子源の実現を目指す.

Outline of Final Research Achievements

Hybrid devices between carbon nanotubes and silicon photonics were characterized. We investigated the effects of photonic crystal cavity design, Q-value, and nanotube coupling method to the cavity. The emission from the nanotubes enhanced by the cavity was successfully guided into the waveguide and detected. In addition, a method to reduce non-radiative recombination due to substrate contact was investigated. By placing the nanotubes on a high plateau, the photoluminescence intensity was maintained, and single-photon generation from the nanotubes coupled to the cavity was demonstrated. Furthermore, by sandwiching a two-dimensional material between the nanotubes and the cavity substrate as a spacer, a device with virtually no increase in non-radiative recombination was realized.

Academic Significance and Societal Importance of the Research Achievements

カーボンナノチューブとシリコンフォトニクスを融合させたデバイスの作製に取り組み,共振器と結合して増強されたナノチューブからの発光を導波路に取り込むことに成功し,高効率光取り出しが可能なデバイスを実証できた.このような導波路結合光は、シリコン基板上に集積された様々な光部品や,光ファイバに容易に接続することができ,単一カーボンナノチューブ光デバイスの応用性を広げることができる.また,ナノチューブの基板集積時に問題になる基板接触による発光減少を回避する方法を提案し,ナノチューブ-シリコンフォトニクス集積デバイスにおける有用性を実証できた.

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (18 results)

All 2022 2021 2020 Other

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (12 results) (of which Int'l Joint Research: 7 results,  Invited: 1 results) Remarks (2 results)

  • [Journal Article] Evidence for near-unity radiative quantum efficiency of bright excitons in carbon nanotubes from the Purcell effect2022

    • Author(s)
      H. Machiya, D. Yamashita, A. Ishii, and Y. K. Kato
    • Journal Title

      Physical Review Research

      Volume: 4 Issue: 2

    • DOI

      10.1103/physrevresearch.4.l022011

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deterministic transfer of optical-quality carbon nanotubes for atomically defined technology2021

    • Author(s)
      Otsuka Keigo、Fang Nan、Yamashita Daiki、Taniguchi Takashi、Watanabe Kenji、Kato Yuichiro K.
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 1-8

    • DOI

      10.1038/s41467-021-23413-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Quantum Emission Assisted by Energy Landscape Modification in Pentacene-Decorated Carbon Nanotubes2021

    • Author(s)
      Li Zhen、Otsuka Keigo、Yamashita Daiki、Kozawa Daichi、Kato Yuichiro K.
    • Journal Title

      ACS Photonics

      Volume: 8 Issue: 8 Pages: 2367-2374

    • DOI

      10.1021/acsphotonics.1c00539

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Waveguide coupled cavity-enhanced light emission from individual carbon nanotubes2021

    • Author(s)
      Yamashita D.、Machiya H.、Otsuka K.、Ishii A.、Kato Y. K.
    • Journal Title

      APL Photonics

      Volume: 6 Issue: 3 Pages: 031302-031302

    • DOI

      10.1063/5.0042635

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Waveguide coupled cavity-enhanced light mission from individual carbon nanotubes2022

    • Author(s)
      D. Yamashita, H. Machiya, K. Otsuka, A. Ishii,Y. K. Kato
    • Organizer
      8th Workshop on Nanotube Optics and Nanospectroscopy (WONTON 2022)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Waveguide-coupled narrow-linewidth photoluminescence from a single carbon nanotube2022

    • Author(s)
      D. Yamashita, H. Machiya, K. Otsuka, A. Ishii, Y. K. Kato
    • Organizer
      Conference on Lasers and Electro-Optics (CLEO)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Deterministic dry transfer of carbon nanotubes into photonic devices using single-crystalline anthracene2021

    • Author(s)
      K. Otsuka, N. Fang, D. Yamashita, T. Taniguchi, K. Watanabe, Y. K. Kato
    • Organizer
      International Conference on the Science and Application of Nanotubes and Low-Dimensional Materials (NT21)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Near-Unity Radiative Quantum Efficiency of Excitons in Carbon Nanotubes2021

    • Author(s)
      H. Machiya, D. Yamashita, A. Ishii, Y. K. Kato
    • Organizer
      239th Electrochemical Society Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Near-unity radiative quantum efficiency of excitons in carbon nanotubes2021

    • Author(s)
      H. Machiya, D. Yamashita, A. Ishii, Y. K. Kato
    • Organizer
      International Conference on the Science and Application of Nanotubes and Low-Dimensional Materials (NT21)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] eterministic transfer of optical-quality carbon nanotubes for atomically defined technology2021

    • Author(s)
      K. Otsuka, N. Fang, D. Yamashita, T. Taniguchi, K. Watanabe, Y. K. Kato
    • Organizer
      JSAP-OSA Joint Symposia, the 82nd JSAP Autumn Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Deterministic transfer of optical-quality carbon nanotubes for atomically defined technology2021

    • Author(s)
      K. Otsuka, N. Fang, D. Yamashita, T. Taniguchi, K. Watanabe, Y. K. Kato
    • Organizer
      The 61st Fullerenes-Nanotubes-Graphene General Symposium
    • Related Report
      2021 Annual Research Report
  • [Presentation] Waveguide coupled cavity-enhanced light emission from individual carbon nanotubes2021

    • Author(s)
      D. Yamashita, H. Machiya, K. Otsuka, A. Ishii, Y. K. Kato
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Waveguide coupled cavity-enhanced light emission from individual carbon nanotubes2021

    • Author(s)
      D.Yamashita, H. Machiya, K. Otsuka, A. Ishii, Y. K. Kato
    • Organizer
      The 60th Fullerenes-Nanotubes-Graphene General Symposium
    • Related Report
      2020 Research-status Report
  • [Presentation] Directional exciton diffusion in pentacene-decorated carbon nanotubes2020

    • Author(s)
      Z. Li, K. Otsuka, D. Yamashita, Y. K. Kato
    • Organizer
      JSAP-OSA Joint Symposia
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Directional exciton diffusion in pentacene-decorated carbon nanotubes2020

    • Author(s)
      Z. Li, K. Otsuka, D. Yamashita, Y. K. Kato
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] Directional exciton diffusion in pentacene-decorated carbon nanotubes2020

    • Author(s)
      Z. Li, K. Otsuka, D. Yamashita, Y. K. Kato
    • Organizer
      The 59th Fullerenes-Nanotubes-Graphene General Symposium
    • Related Report
      2020 Research-status Report
  • [Remarks] 原子精度で定義されたナノ物質を正確に配置

    • URL

      https://www.riken.jp/press/2021/20210525_6/

    • Related Report
      2021 Annual Research Report
  • [Remarks] フォトニック結晶ナノビーム共振器・導波路に結合した単一カーボンナノチューブ発光

    • URL

      http://katogroup.riken.jp/ja/waveguidecoupling.html

    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2023-01-30  

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