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Indistinguishable photon generation by resonant excitation of excitons confined in zero and two dimensions

Research Project

Project/Area Number 17H02909
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics I
Research InstitutionUniversity of Tsukuba

Principal Investigator

IKEZAWA MICHIO  筑波大学, 数理物質系, 准教授 (30312797)

Co-Investigator(Kenkyū-buntansha) 佐久間 芳樹  国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, グループリーダー (60354346)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Fiscal Year 2019: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2017: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Keywords単一光子源 / 発光中心 / 半導体ナノプレートレット / 遷移金属ダイカルコゲナイド / 光物性 / 単一光子 / 単一光子発生 / ナノプレートレット / 位相緩和
Outline of Final Research Achievements

Photonic crystal resonators with delta-doped nitrogen were fabricated for a nitrogen luminescence center in GaAs, and the emission rate was increased by 6.3 times by coupling with an resonance mode confined in the L3 defect. This makes it easier to meet the conditions for indistinguishable photon generation.
We obtained photon echo signals for delta-doped GaAs: N, which are important for understanding the mechanism of phase relaxation that deteriorates the visibility of two-photon interference, for the first time.
We observed single semiconductor nanoplates at low temperatures, and observed fast single photon generation. We also observed quantum dot‐like behavior in single‐layer transition metal dichalcogenide microcrystals at low temperatures.

Academic Significance and Societal Importance of the Research Achievements

区別のつかない光子を固体素子から大量に得ることは、量子暗号通信や量子コンピュータをはじめとする今後の量子情報技術の発展のためには不可欠である。半導体量子ドットが有望な光源として研究されているが、量子ドットの個性に起因する困難に直面している。本研究はその問題に対して、半導体中の単一欠陥や、単一の微小な薄い半導体結晶のような新しい材料に、共鳴光励起という励起法を用いてアプローチしようとしている。研究期間内にはそのために必要な基礎的な知見が得られ、いくつかの実験的課題を解決できた。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (12 results)

All 2020 2019 2018 2017

All Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Enhanced Spontaneous Emission Rates for Single Isoelectronic Luminescence Centers in Photonic Crystal Cavities2020

    • Author(s)
      Ruoxi Wang, Michio Ikezawa, Yoshiki Sakuma, Yoshimasa Sugimoto, Naoki Ikeda, Hiroyuki Takeda, Kazuaki Sakoda, Yasuaki Masumoto
    • Journal Title

      ACS Photonics

      Volume: 7 Issue: 2 Pages: 321-326

    • DOI

      10.1021/acsphotonics.9b00616

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Decoherence Dynamics of Localized States in a Single GaAs/AlGaAs Quantum Ring2018

    • Author(s)
      Kim Minju、Park Seongho、Yamashita Yuma、Kyhm Kwangseuk、Ikezawa Michio、Bietti Sergio、Sanguinetti Stefano
    • Journal Title

      physica status solidi (RRL) - Rapid Research Letters

      Volume: 12 Issue: 9 Pages: 1800176-1800176

    • DOI

      10.1002/pssr.201800176

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Enhanced luminescence and energy transfer in Mn2+ doped CsPbCl3?xBrx perovskite nanocrystals2018

    • Author(s)
      Fei Liling、Yuan Xi、Hua Jie、Ikezawa Michio、Zeng Ruosheng、Li Haibo、Masumoto Yasuaki、Zhao Jialong
    • Journal Title

      Nanoscale

      Volume: 10 Issue: 41 Pages: 19435-19442

    • DOI

      10.1039/c8nr05492d

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Temperature-dependent photoluminescence of Mn doped CsPbCl3 perovskite nanocrystals in mesoporous silica2018

    • Author(s)
      Xing Yanbo、Yuan Xi、Ji Sihang、Ikezawa Michio、Zeng Ruosheng、Li Haibo、Masumoto Yasuaki、Zhao Jialong
    • Journal Title

      Journal of Luminescence

      Volume: 204 Pages: 10-15

    • DOI

      10.1016/j.jlumin.2018.07.029

    • Related Report
      2018 Annual Research Report
  • [Presentation] 窒素をデルタドープしたGaAsの3パルスフォトンエコー測定2019

    • Author(s)
      田久保悠一, 石澤輝, 佐久間芳樹,池沢道男
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] チューナブルなファブリー・ペロー型光共振器中の二次元半導体の光スペクトル2019

    • Author(s)
      片平博夫,久保直人,寺平成希,佐久間芳樹,池沢道男
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 単一CdSeナノプレートレットの顕微分光測定2018

    • Author(s)
      寺平成希,安藤玄樹, 木村大希, 舛本泰章, 池沢道男
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Coherence and indistinguishability of single photons emitted from nitrogen impurity centers in GaAs2018

    • Author(s)
      Michio Ikezawa
    • Organizer
      The 19th International Symposium on the Physics of Semiconductors and Applications (ISPSA-2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 窒素をデルタドープした GaAs の四光波混合測定2018

    • Author(s)
      福島崚太、田久保悠一、佐久間芳樹、池沢道男
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Single Photon emission from nitrogen isoelectronic traps in GaAs2017

    • Author(s)
      Michio Ikezawa
    • Organizer
      International Symposium on Functional Materials
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] GaAs量子リングの位相緩和時間測定2017

    • Author(s)
      山下勇真、池沢道男、Seongho Park, Kwangseuk Kyhm, Jindong Kyhm
    • Organizer
      第78回 応用物理学会 秋季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 窒素をデルタドープしたGaAs(111)A 面上の発光中心の偏光異方性2017

    • Author(s)
      王 若曦、松山亨平、佐久間芳樹、池沢道男、舛本泰章
    • Organizer
      第78回 応用物理学会 秋季学術講演会
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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