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Ultrafast digital holography using a chirped pulse

Research Project

Project/Area Number 18K04983
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 30020:Optical engineering and photon science-related
Research InstitutionChitose Institute of Science and Technology

Principal Investigator

Karasawa Naoki  公立千歳科学技術大学, 理工学部, 教授 (00337099)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords超短光パルス / デジタルホログラフィー / 超高速現象 / チャープパルス / ディジタルホログラフィー
Outline of Final Research Achievements

The purpose of this research was to demonstrate “chirped pulse digital holography,” which was proposed recently to obtain the temporal evolution of optical wavefronts in ultrafast phenomena. We prepared a chirped reference pulse and object pulses with a 3.7 picosecond temporal separation using a 35 femtosecond optical pulse from a laser oscillator. These reference pulse and object pulses were used to record object wavefronts at different times simultaneously in a single-shot setup. We have obtained phase images, as well as amplitude images, of a slit with lens, the injection of compressed air from a nozzle, and the spark discharge in a spark plug, and have demonstrated the validity of this method.

Academic Significance and Societal Importance of the Research Achievements

本研究の目的は超高速現象の時間的発展を正確に捉えるための新提案手法であるチャープパルスデジタルホログラフィーの実験的検証を行うことである。自然界には放電現象等の超高速現象が存在しており、その時間的発展を正確に画像化することはそれらの現象の解明に非常に重要である。またパルス幅が数フェムト秒の超短パルスが発生可能なレーザーが進展しており、それを用いたレーザーアブレーション等による微細加工等が実用的な面からも重要となっている。本研究で提案した手法はこれらの現象のピコ秒オーダーの間隔の振幅・位相画像がフェムト秒オーダーの分解能で複数枚取得できるため、現象の解明および応用に大きな意義あると考えられる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018 Other

All Journal Article (5 results) (of which Peer Reviewed: 4 results) Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Remarks (1 results)

  • [Journal Article] Observation of ultrafast phenomena using chirped pulse digital holography2020

    • Author(s)
      Naoki Karasawa, Shogo Yamada, and Hiroki Kanaya
    • Journal Title

      Optics Communications

      Volume: 473 Pages: 125941-125941

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental demonstration of single-shot chirped pulse digital holography2019

    • Author(s)
      Naoki Karasawa and Airi Hirayama
    • Journal Title

      Optics Communications

      Volume: 447 Pages: 42-45

    • DOI

      10.1016/j.optcom.2019.04.089

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] フォトニック結晶ファイバーCARS分光計測2019

    • Author(s)
      唐澤直樹、夛田量宏
    • Journal Title

      フォトニクスニュース

      Volume: 5 Pages: 8-12

    • Related Report
      2018 Research-status Report
  • [Journal Article] Chirped pulse digital holography for measuring the sequence of ultrafast optical wavefronts2018

    • Author(s)
      Naoki Karasawa
    • Journal Title

      Optics Communications

      Volume: 413 Pages: 19-23

    • DOI

      10.1016/j.optcom.2017.12.021

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Soliton-like pulse propagation in a normal dispersive liquid-core optical fiber2018

    • Author(s)
      N. Karasawa, A. Yoshida, and K. Watanabe
    • Journal Title

      Optics Letters

      Volume: 43 Issue: 16 Pages: 3897-3900

    • DOI

      10.1364/ol.43.003897

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Ultrasfast Phase Imaging by Singe-Shot Chirped Pulse Digital Holography2020

    • Author(s)
      Naoki Karasawa, Shogo Yamada, and Hiroki Kanaya
    • Organizer
      Conference on Lasers and Electro-Opitcs 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] チャープパルスディジタルホログラフィーによる超高速現象の観測2020

    • Author(s)
      山田章五、金谷豊輝、唐澤直樹
    • Organizer
      第55回応用物理学会北海道支部第16回日本光学会北海道支部合同学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] 超高速現象のチャープパルスディジタルホログラフィーによる観測2020

    • Author(s)
      唐澤直樹、山田章五、金谷豊輝
    • Organizer
      第67回応用物理学会春季学術講演会
    • Related Report
      2019 Research-status Report
  • [Presentation] チャープパルスを用いた超高速ディジタルホログラフィー2019

    • Author(s)
      唐澤直樹
    • Organizer
      2019年度第2回PST-net例会2019年度第1回光テクノロジー応用懇談会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] チャープパルスディジタルホログラフィーの原理検証2019

    • Author(s)
      唐澤直樹、平山愛梨
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] Fundamental soliton-like pulse propagation in a normal dispersive liquid-core optical fiber2018

    • Author(s)
      N. Karasawa, A. Yoshida, and K. Watanabe
    • Organizer
      19th Chitose International Forum on Photonic Science and Technology (CIF’19)2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 超短パルスレーザーによる広帯域光波の発生とその分光・計測への応用2018

    • Author(s)
      唐澤直樹
    • Organizer
      レーザー学会「ファイバーレーザー技術」技術専門委員会第2回委員会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Remarks]

    • URL

      https://www.chitose.ac.jp/~n-karasa/index.html

    • Related Report
      2020 Annual Research Report

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Published: 2018-04-23   Modified: 2022-01-27  

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