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Broadband noise suppression in higher order Nyquist region and its application to lock-in microscopy

Research Project

Project/Area Number 25600116
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Optical engineering, Photon science
Research InstitutionThe University of Tokyo

Principal Investigator

OZEKI Yasuyuki  東京大学, 工学(系)研究科(研究院), 准教授 (60437374)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords誘導ラマン散乱 / 雑音抑制 / 光パルス
Outline of Final Research Achievements

This research aimed at developing novel techniques of light control for applying practical laser sources to stimulated Raman scattering (SRS) microscopy, which is regarded as a powerful technique for label-free biomedical imaging. In the beginning of this research, we planned to investigate noise suppression in higher order Nyquist region, but we changed the research strategy without changing the objective. The achievements can be summarized as (1) demonstration of spectral imaging by fiber-laser-based SRS microscopy, (2) discovery of RF spectral modulation due to delayed interference of optical noise, and (3) realization of high-speed wavelength-tunable pulsed fiber laser with an intracavity optical filter. These results indicate that the research objective has been almost achieved.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (7 results)

All 2015 2014 2013 Other

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (4 results) (of which Invited: 1 results)

  • [Journal Article] RF spectral modulation caused by delayed interference and photodetection of optical noise2014

    • Author(s)
      K. Nose, Y. Ozeki, Y. Kanematsu, Y. Takai, and K. Itoh
    • Journal Title

      Opt. Rev.

      Volume: 21 Issue: 4 Pages: 425-425

    • DOI

      10.1007/s10043-014-0066-1

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stimulated Raman spectral microscope using synchronized Er- and Yb-fiber lasers.2014

    • Author(s)
      Nose, K., Kishi, T., Ozeki, Y., Kanematsu, Y., Takata, H.,Fukui, K., Takai, Y. and Itoh, K.
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 53 Issue: 5 Pages: 52401-52401

    • DOI

      10.7567/jjap.53.052401

    • NAID

      210000143745

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] ファイバレーザー光を用いたリアルタイム誘導ラマン散乱顕微鏡の開発2013

    • Author(s)
      小関泰之、岸達也、能勢啓輔、伊東一良
    • Journal Title

      レーザー研究

      Volume: 41 Pages: 619-621

    • NAID

      10031193025

    • Related Report
      2013 Research-status Report
  • [Presentation] Fast Wavelength-Tunable Picosecond Pulses from Mode-Locked Er Fiber Laser using an Intracavity Filter with Repetition Rate Compensator2015

    • Author(s)
      Y. Ozeki and D. Tashiro
    • Organizer
      Conference on Lasers and Electro-Optics (CLEO2015), STh1L.3
    • Place of Presentation
      San Jose, U.S.A.
    • Year and Date
      2015-05-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] 共振器内フィルタを有する高速波長可変ピコ秒モード同期ファイバレーザ2015

    • Author(s)
      田代 大悟、小関 泰之
    • Organizer
      第62回応用物理学会春季学術講演会、12a-A15-9
    • Place of Presentation
      東海大学、神奈川県
    • Year and Date
      2015-03-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] ファイバーレーザー光を用いたリアルタイム誘導ラマン散乱顕微鏡の開発2015

    • Author(s)
      小関泰之、岸達也、能勢啓輔、伊東一良
    • Organizer
      レーザー学会学術講演会第35回年次大会、12a-I-6
    • Place of Presentation
      東海大学高輪キャンパス、東京都
    • Year and Date
      2015-01-12
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Fiber-laser-based stimulated Raman microspectroscopy with shot-noise limited sensitivity

    • Author(s)
      K. Nose, T. Kishi, Y. Ozeki, Y. Kanematsu, and K. Itoh
    • Organizer
      CLEO-PR2013
    • Place of Presentation
      京都、京都国際会館
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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