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HiCIAO用MEMS可変形鏡を用いたスペックル制御の研究

Research Project

Project/Area Number 19015008
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

OLIVIER Guyon (GUYON Olivier)  National Astronomical Observatory of Japan, ハワイ観測所, RCUH職員 (90399288)

Co-Investigator(Kenkyū-buntansha) 高見 英樹  国立天文台, ハワイ観測所, 教授 (00270455)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥9,200,000 (Direct Cost: ¥9,200,000)
Fiscal Year 2008: ¥5,200,000 (Direct Cost: ¥5,200,000)
Fiscal Year 2007: ¥4,000,000 (Direct Cost: ¥4,000,000)
Keywords太陽系外惑星 / コロナグラフ / 天体観測装置 / 補償光学系
Research Abstract

本研究は太陽系外の惑星を、すばる望遠鏡を使って直接撮像によって検出するための技術開発である。地球から見ると太陽系外惑星は極めて暗く、かつ明るい恒星のすぐ近くを回っているために、恒星の散乱光に埋もれてしまい検出が非常に難しい。この散乱光はスペックルと呼ぶ粒状の形状をしているが、これは星から来る光が地球大気の揺らぎによって波面が乱され、お互いに干渉することによって生じる。このスペックルは粒状のために、星との区別が付きにくいことが問題である。このスペックルは乱れた波面を高素子数の可変形鏡を用いて補正することによって低減することができる。平成20年度は実験室において、前年度までに開発してきた新しい半導体製造技術を利用した1000素子MEMS型可変形鏡を組込んだ試験装置を用いて、スペックル低減技術のアルゴリズム試験と性能試験を行い、系外惑星探査観測装置HiCIAOで必要とされている仕様を上回る性能を実現した。得られた結果としては、全散乱光を2e-7のレベルまで低減することができ、またコヒーレントな光に対する低減効果は1e-8にも達した。この結果は査読論文に投稿中である。
また、実際の天体観測用のシステムとして、HiCIAOに組みこむMEMSスペックル低減装置の設計開発し、性能試験を行った。最終的なすばる望遠鏡への組み込みは、これと組み合わせて用いる究極補償光学系システム、HiCIAO用支持機構、制御ソフトウェアの完成を待って行い、2010年の観測開始を予定している。

Report

(2 results)
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (25 results)

All 2009 2008 2007 Other

All Journal Article (10 results) (of which Peer Reviewed: 2 results) Presentation (11 results) Remarks (4 results)

  • [Journal Article] Coronagraphic Low Order Wavefront Sensor : Principle and Application to a Phase-Induced Amplitude Coronagraph2009

    • Author(s)
      Guyon, Olivier, 他
    • Journal Title

      Astrophysical Journal 693

      Pages: 75-84

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Improving the Sensitivity of Astronomical Curvature Wavefront Sensor Using Dual-Stroke Curvature2008

    • Author(s)
      Guyon, Olivier, 他
    • Journal Title

      Publication of Astronomical Society of the Pacific 120

      Pages: 655-664

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] HiCIAO : the Subaru Telescope's new high-contrast coronagraphic imager for adaptive optics2008

    • Author(s)
      Hodapp, Klaus
    • Journal Title

      Proceedings of SPIE 7014

      Pages: 701419-12

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Pupil mapping Exoplanet Coronagraphic Observer (PECO)2008

    • Author(s)
      Guyon, Oliver
    • Journal Title

      Proceedings of SPIE 7014

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Ultra-high-sensitivity wavefront sensing for extreme-AO2008

    • Author(s)
      Guyon, Oliver
    • Journal Title

      Proceedings of SPIE 7015

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Focal plane and non-linear curvature wavefront sensing for high contrast coronagraphic adaptive optics imaging2007

    • Author(s)
      Guyon, Olivier
    • Journal Title

      Proceedings of the advanced Maui optical and space surveillance technologies conference

      Pages: 8-8

    • Related Report
      2007 Annual Research Report
  • [Journal Article] High performance curvature wavefront sensing for extreme AO2007

    • Author(s)
      Guyon, Olivier
    • Journal Title

      SPIE proceedings 6691

    • Related Report
      2007 Annual Research Report
  • [Journal Article] TOPS: a small space telescope using phased induced amplitude apodization(PIAA)to image rocky and giant exoplanets2007

    • Author(s)
      Guyon, Olivier
    • Journal Title

      SPIE proceedings 6693

    • Related Report
      2007 Annual Research Report
  • [Journal Article] A theoretical look at coronagraph design and performance for direct im aging of exoplanets2007

    • Author(s)
      Guyon, Olivier
    • Journal Title

      Reports of the French Science Academy Physique Vol.8, Issue3-4

      Pages: 323-332

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Reshaping light using aspheric optics for direct imaging of exoplanets2007

    • Author(s)
      Guyon, Olivier
    • Journal Title

      SPIE Newsroom article(http://spie.org/x24241.xml)

    • Related Report
      2007 Annual Research Report
  • [Presentation] Coronagraphy review2009

    • Author(s)
      Guyon, Olivier
    • Organizer
      2nd Subaru International Conference "Exoplanets and Di sks : Their Formation and Diversity
    • Place of Presentation
      Kona, Hawaii, USA
    • Year and Date
      2009-03-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Imaging and characterizing the habitable zones of nearby planetary systems with the Pupil mapping Exoplanet Coronagraphic Observer (PECO)2009

    • Author(s)
      Guyon, Olivier
    • Organizer
      米国天文学会
    • Place of Presentation
      Long Beach, California, USA
    • Year and Date
      2009-01-08
    • Related Report
      2008 Annual Research Report
  • [Presentation] The Pupil mapping Exoplanet Coronagraphic Observer (PECO)2008

    • Author(s)
      Guyon, Olivier
    • Organizer
      American Institute of Aeronautics and Astronautics (AIAA) meeting
    • Place of Presentation
      San Diego, California, USA
    • Year and Date
      2008-09-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] Direct Imaging Of Nearby Exoplanets With A Small Size Space Telescope: Telescope To Observe Planetary System(TOPS)2007

    • Author(s)
      Guyon, Olivier、他
    • Organizer
      American Astronomical Society Meeting 210
    • Place of Presentation
      ホノルル市、ハワイ州
    • Related Report
      2007 Annual Research Report
  • [Presentation] Thermally Actuated Primary Mirror for Space Exoplanet Imaging2007

    • Author(s)
      Angel, R, Guyon, O., 他
    • Organizer
      American Astronomical Society Meeting 210
    • Place of Presentation
      ホノルル市、ハワイ州
    • Related Report
      2007 Annual Research Report
  • [Presentation] The Coronagraph Tree of Life2007

    • Author(s)
      Guyon, Olivier
    • Organizer
      The direct detection of planets and circumstellar disks in the 21st century
    • Place of Presentation
      カリフォルニア大バークレー
    • Related Report
      2007 Annual Research Report
  • [Presentation] Direct Imaging of Nearby Exoplanets with a Small Size Space Telescope: Telescope to Observe Planetary System(TOPS)2007

    • Author(s)
      Guyon, Olivier
    • Organizer
      The Direct Detection of Planets and circumstellar Disks in the 21st Century
    • Place of Presentation
      カリフォルニア大バークレー
    • Related Report
      2007 Annual Research Report
  • [Presentation] High Contrast Tests with a PIAA Coronagraph in Air2007

    • Author(s)
      Guyon, Olivier
    • Organizer
      The direct detection of planets and circumstellar disks in the 21st century
    • Place of Presentation
      カリフォルニア大バークレー
    • Related Report
      2007 Annual Research Report
  • [Presentation] Laboratory Demonstration of the PIAA/Binary-Mask Hybrid Coronagraph2007

    • Author(s)
      Guyon, Olivier
    • Organizer
      The direct detection of planets and circumstellar disks in the 21st century
    • Place of Presentation
      カリフォルニア大バークレー
    • Related Report
      2007 Annual Research Report
  • [Presentation] Status of PIAA-related Experiments and Projects2007

    • Author(s)
      Guyon, Olivier
    • Organizer
      The direct detection of planets and circumstellar disks in the 21st century
    • Place of Presentation
      カリフォルニア大バークレー
    • Related Report
      2007 Annual Research Report
  • [Presentation] Focal Plane and non-linear Curvature Wavefront Sensing for High Contrast Ada ptive Optics2007

    • Author(s)
      Guyon, Olivier
    • Organizer
      Optical Society of America topical meeting on Adaptive Optics
    • Place of Presentation
      バンクーバー、カナダ
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.naoj.org/PIAA/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.naoj.org/Project/SCEXAO/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.naoj.org/PIAA/

    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.naoj.org/staff/guyon/ExtremeAO/index.html

    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2018-03-28  

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