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Ultrahigh-sensitive single molecular spectroscopy of lightharvesting complexes by using optical microresonators

Research Project

Project/Area Number 21840003
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Condensed matter physics I
Research InstitutionHokkaido University

Principal Investigator

FUJIWARA Masazumi  Hokkaido University, 電子科学研究所, 助教 (30540190)

Project Period (FY) 2009 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥2,639,000 (Direct Cost: ¥2,030,000、Indirect Cost: ¥609,000)
Fiscal Year 2010: ¥1,222,000 (Direct Cost: ¥940,000、Indirect Cost: ¥282,000)
Fiscal Year 2009: ¥1,417,000 (Direct Cost: ¥1,090,000、Indirect Cost: ¥327,000)
Keywords非線形光学 / 光物性 / ナノフォトニクス / 単一分子分光 / 超高感度 / フォトニクス / 光ナノファイバ / 微小球共振器 / 光合成蛋白 / コヒーレント分光 / 量子光学
Research Abstract

We have developed ultrahigh-sensitive single molecular spectroscopy by using nano-photonic devices including optical microresonators and nanofibers and have applied this method to single photosynthetic light-harvesting pigment-protein complexes. We have demonstrated (1) the single molecular observation of the light-harvesting complexes at room temperature with a conventional objective and (2) high-sensitive fluorescence detection of quantum dots using nanofiber (6.6% of the total emission photons was detected). These facts suggest that it is possible to detect fluorescence of single light-harvesting complexes with 4-times greater fluorescence collection efficiency.

Report

(3 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • Research Products

    (21 results)

All 2011 2010 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (13 results) Remarks (6 results)

  • [Journal Article] Optical transmittance degradation in tapered fibers2011

    • Author(s)
      Masazumi Fuiiwara, Kiyota Toubaru, Shigeki Takeuchi
    • Journal Title

      Opt.Express

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Optical transmittance degradation in tapered fibers2011

    • Author(s)
      Masazumi Fujiwara, Kiyota Toubaru, Shigeki Takeuchi
    • Journal Title

      Optics Express 2011年3月31日掲載受理

      Volume: (掲載確定,掲載確定)

    • NAID

      120003025354

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] テーパ光ファイバによる単一発行体の蛍光検出とそのテーパ部直径依存性2011

    • Author(s)
      藤原正澄、野田哲矢、桃原清太、趙洪泉、竹内繁樹
    • Organizer
      日本物理学会第66回年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-28
    • Related Report
      2010 Final Research Report
  • [Presentation] テーパ光ファイバによる単一発行体の蛍光検出とそのテーパ部直径依存性2011

    • Author(s)
      藤原正澄、野田哲矢、桃原清太、趙洪泉、竹内繁樹
    • Organizer
      日本物理学会第66回年次大会
    • Place of Presentation
      新潟大学(新潟県)
    • Year and Date
      2011-03-28
    • Related Report
      2010 Annual Research Report
  • [Presentation] Polarization-purity spectra of a tapered-fiber-coupled microsphere cavity system at cryogenic temperatures2011

    • Author(s)
      M.Fujiwara, A.Tanaka, K.Toubaru, H.Q Zhao, H.Takashima, S.Takeuchi
    • Organizer
      SPIE Photonics west 2011
    • Place of Presentation
      San Francisco USA
    • Year and Date
      2011-01-25
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] 分子の輻射場制御を利用した新しい単一分子分光法とそのカロテノイドへの応用可能性2010

    • Author(s)
      藤原正澄
    • Organizer
      2010年カロテノイド若手の会
    • Place of Presentation
      箱根路開雲ホテル
    • Year and Date
      2010-12-20
    • Related Report
      2010 Final Research Report
  • [Presentation] 分子の輻射場制御を利用した新しい単一分子分光法とそのカロテノイドへの応用可能性2010

    • Author(s)
      藤原正澄
    • Organizer
      2010年カロテノイド若手の会
    • Place of Presentation
      箱根路開雲ホテル(神奈川県)
    • Year and Date
      2010-12-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] Fiber-copuled Microsphere at Cryogenic Temperatures for Cavity QED Experiemtns Using Single Diamondo NV Centers2010

    • Author(s)
      M.Fujiwara, K.Toubaru, A.Tanaka, H Q.Zhao, H.Takashima, K.Sasaki, S.Takeuchi
    • Organizer
      Updating Quantum Cryptography and Communications 2010
    • Place of Presentation
      ANAインターコンチネンタルホテル東京
    • Year and Date
      2010-10-19
    • Related Report
      2010 Final Research Report
  • [Presentation] Fiber-copuled Microsphere at Cryogenic Temperatures for Cavity QED Experiemtns Using Single Diamondo NV Centers2010

    • Author(s)
      M.Fujiwara, K.Toubaru, A.Tanaka, H.Q.Zhao, H.Takashima, K.Sasaki, S.Takeuchi
    • Organizer
      Updating Quantum Cryptography and Communications 2010
    • Place of Presentation
      ANAインターコンチネンタルホテル東京(東京都)
    • Year and Date
      2010-10-19
    • Related Report
      2010 Annual Research Report
  • [Presentation] 極低温下におけるテーパファイバ・微小球結合系の実現と制御2010

    • Author(s)
      藤原正澄、桃原清太、田中陽、趙洪泉、高島秀聡、竹内繁樹
    • Organizer
      日本物理学会2010年秋季大会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-24
    • Related Report
      2010 Final Research Report
  • [Presentation] 極低温下におけるテーパファイバ・微小球結合系の実現と制御2010

    • Author(s)
      藤原正澄、桃原清太、田中陽、趙洪泉、高島秀聡、竹内繁樹
    • Organizer
      日本物理学会2010年秋季大会
    • Place of Presentation
      大阪府立大学(大阪府)
    • Year and Date
      2010-09-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] 光ナノファイバの透過率減少に関する研究2010

    • Author(s)
      桃原清太,藤原正澄,竹内繁樹
    • Organizer
      第22回量子情報技術研究会(QIT22)
    • Place of Presentation
      大阪大学
    • Year and Date
      2010-05-10
    • Related Report
      2010 Final Research Report
  • [Presentation] テーパファイバ・微小球結合系における強結合状態の実現に向けて22010

    • Author(s)
      藤原正澄,桃原清太,趙洪泉,竹内繁樹
    • Organizer
      第22回量子情報技術研究会(QIT22)
    • Place of Presentation
      大阪大学
    • Year and Date
      2010-05-10
    • Related Report
      2010 Final Research Report
  • [Presentation] テーパファイバ・微小球結合系における強結合状態の実現に向けて22010

    • Author(s)
      藤原正澄, 桃原清太, 趙洪泉, 竹内繁樹
    • Organizer
      第22回量子情報技術研究会(QIT22)
    • Place of Presentation
      大阪大学(大阪府)
    • Year and Date
      2010-05-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] 光ナノファイバの透過率減少に関する研究2010

    • Author(s)
      桃原清太, 藤原正澄, 竹内繁樹
    • Organizer
      第22回量子情轍術研究会(QIT22)
    • Place of Presentation
      大阪大学(大阪府)
    • Year and Date
      2010-05-10
    • Related Report
      2010 Annual Research Report
  • [Remarks] ホームページ等

    • URL

      http://www.sanken.osaka-u.ac.jp/labs/qip/

    • Related Report
      2010 Final Research Report
  • [Remarks]

    • URL

      http://www.masazumifujiwara.net/

    • Related Report
      2010 Final Research Report
  • [Remarks]

    • URL

      http://www.sanken.osaka-u.ac.jp/labs/qip/

    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.masazumifujiwara.net/

    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.sanken.osaka-u.ac.jp/labs/qip/

    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.masazumifujiwara.net/

    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2020-05-15  

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