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Classical optical realization of optical measurement technology using quantum entangled photon pairs

Research Project

Project/Area Number 16K17524
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Optical engineering, Photon science
Research InstitutionHokkaido University

Principal Investigator

Ogawa Kazuhisa  北海道大学, 情報科学研究院, 助教 (80772574)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords量子計測 / 時間反転 / 回折限界 / 標準量子限界 / 分解能 / 分散 / 量子もつれ光子対 / 時間反転対称性 / 量子光イメージング / Young干渉 / 集光ビームスポット / 時間反転法 / 応用光学・量子光工学 / 共焦点顕微鏡 / 計測工学 / 量子エレクトロニクス
Outline of Final Research Achievements

In recent years, research on "quantum optical measurement", which is a measurement method that uses the quantum properties of photons, has been actively conducted. However, since quantum entangled photon pairs are generally weak, there are many experimental difficulties. In this study, we aimed to reproduce the quantum optical measurement in classical optics by using time reversal system, and apply it to optical measurement techniques.
First, We reproduce Young's interference fringes and focused beam spot exceeding the diffraction limit, which is can be realized by using entangled photon pairs, in classical optics. Second, we applied the automatic dispersion cancellation technique, which can be realized by classical time-reversed systems, to reduce the resolution degradation due to dispersion in optical coherence tomography.

Academic Significance and Societal Importance of the Research Achievements

光量子計測は様々な手法が提案・実験されているが, 量子光の取り扱いの難しさにより多くは実験検証段階であり実用に至っている技術は少ない. 本研究は, これらの技術を古典光学系に焼き直すことで, 実際に光計測に実装できる方法を提供するという意義がある. 本研究での分散消去された光干渉断層撮影の時間反転系を用いた古典光学的実現は, この性質を実現するために量子もつれ光子対は必要条件ではないことを示す例となっている. しかしながら, 時間反転系で再現した回折限界を超える集光ビームスポットがイメージングには適用できず, これは時間反転法は万能ということではないことを示す結果となった.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (8 results)

All 2018 2017

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

  • [Journal Article] Classical reconstruction of interference patterns of position-wave-vector-entangled photon pairs by the time-reversal method2018

    • Author(s)
      Kazuhisa Ogawa, Hirokazu Kobayashi, and Akihisa Tomita
    • Journal Title

      Physical Review A

      Volume: 97 Issue: 2

    • DOI

      10.1103/physreva.97.023823

    • NAID

      120006416021

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 光量子イメージングとその時間反転系を用いた古典光学的実現2018

    • Author(s)
      小川 和久
    • Organizer
      第20回光科学若手研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 損失媒質の高感度位相計測2018

    • Author(s)
      今田 諒太
    • Organizer
      物性研短期研究会 量子情報・物性の新潮流
    • Related Report
      2018 Annual Research Report
  • [Presentation] 時間反転法を用いた位置-波数もつれ光子対が示す量子干渉の古典光学的観測およびその光イメージングへの応用可能性2018

    • Author(s)
      小川 和久, 小林 弘和, 富田 章久
    • Organizer
      QMNH2018
    • Related Report
      2017 Research-status Report
  • [Presentation] 回折限界を超える集光ビーム径の事後選択的観測2017

    • Author(s)
      小川 和久, 富田 章久
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] Photonic de Broglie波長によるビームスポット径の古典的観測2017

    • Author(s)
      小川 和久
    • Organizer
      第6回QUATUO研究会
    • Place of Presentation
      高知工科大学
    • Year and Date
      2017-01-08
    • Related Report
      2016 Research-status Report
  • [Presentation] Experimental Reconstruction of a Sub-diffraction-limited Focused Beam Spot by a Time-reversed Two-photon System2017

    • Author(s)
      Kazuhisa Ogawa, Akihisa Tomita
    • Organizer
      ICO-24
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 量子力学の時間反転対称性を用いた回折限界を超える集光ビームスポットの古典光学的観測2017

    • Author(s)
      小川 和久, 小林 弘和, 富田 章久
    • Organizer
      QIT36
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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