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Temporal and spatial control of ultrashort pulse and its application to THz wave

Research Project

Project/Area Number 25610069
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Condensed matter physics I
Research InstitutionTohoku University

Principal Investigator

YOSHIZAWA Masayuki  東北大学, 理学(系)研究科(研究院), 教授 (60183993)

Research Collaborator SHINODA Naoki  東北大学, 大学院理学研究科
Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords超短光パルス / 時空間波形制御 / THz波発生 / 光物性 / 時空間波形整形 / パルス波形制御 / THz波発生
Outline of Final Research Achievements

Temporal and 2-dimensinal spatial control of ultrashort light pulse has been achieved. The temporal pulse shape can be controlled by so called 4-f system which consists of a grating pair, lenses, and spatial phase modulator. In this research, newly proposed principle for 2D spatial and temporal control has been proved using double 4-f system and 2D phase modulator. Spatial resolution is about 0.1 mm. It can be improved, because it is determined by the present setup of the double 4-f system. Now, number of temporal shapes is limited, but it can be increased using a modulator with more pixels. The 2D spatial and temporal pulse can generate THz wave with controllable directivity and frequency. Numerical simulation shows the developed system can be used to the application of the controllable THz wave.

Report

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

    (4 results)

All 2015 2014 Other

All Presentation (3 results) (of which Invited: 2 results) Remarks (1 results)

  • [Presentation] 2重4f光学系による超短光パルスの時空間波形整形2015

    • Author(s)
      篠田尚輝、吉澤雅幸
    • Organizer
      日本物理学会第70回年次大会
    • Place of Presentation
      早稲田大学、東京
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] Multi-pump femtosecond spectroscopy and its application to primary process of photosynthesis2014

    • Author(s)
      Masayki Yoshizawa
    • Organizer
      The 3rd International Summer Course and Workshop on Development and Applications of Ultrafast Lasers
    • Place of Presentation
      National Chiao Tung University, Taiwan
    • Year and Date
      2014-08-04 – 2014-08-05
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] マルチ励起フェムト秒分光によるカロテノイド動的過程の解明2014

    • Author(s)
      吉澤雅幸
    • Organizer
      第11回AMO討論会
    • Place of Presentation
      大阪大学、大阪
    • Year and Date
      2014-06-05 – 2014-06-06
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Remarks] 光物性研究室有機π電子系グループ

    • URL

      http://www.sspp.phys.tohoku.ac.jp/yoshizawa

    • Related Report
      2014 Annual Research Report

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Published: 2014-07-25   Modified: 2020-05-15  

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