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Correlation Polarimeter Camera with Superconducting Circuits for Radio Adaptive Optics

Research Project

Project/Area Number 19K03920
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 16010:Astronomy-related
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

Nagai Makoto  国立天文台, 先端技術センター, 特任研究員 (50522877)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords電波望遠鏡 / 超伝導検出器 / 偏波カメラ / 鏡面測定法 / コプレーナ導波路 / 結合器 / 平面アンテナ
Outline of Research at the Start

次世代の電波望遠鏡となる大口径単一鏡において鏡面形状を保つための鏡面測定と形状補正を可能にする方法として、電波点回折干渉計によって望遠鏡光学系を通過したビーム波面を測定する手法が提案されている。本研究の目的は、電波点回折干渉計に向けて多素子化が容易な偏波計を開発することである。提案する偏波計は、平面アンテナと超伝導回路から成り、MKIDという超伝導検出器を用いるという新しいタイプの相関型偏波計である。本研究によって多素子化と製作も容易な偏波計が実現できれば、電波望遠鏡での補償光学への道を拓くことができる。

Outline of Final Research Achievements

Throughout the research period, all the necessary components of the correlation polarimeter were studied individually, and the basic design of the pixel for the correlation polarimeter was completed. New components such as a plane antenna for both linear polarizations with an anti-phase combiner, a delay circuit for the correlation polarimeter, and a high-pass filter connecting the delay circuit and the MKID resonator have all obtained the necessary characteristics through electromagnetic field simulations. The obtained designs were presented in an international conference and a peer-reviewed paper. Although it was not possible to fabricate a prototype polarimeter, we have identified the components for which feedback to the design is desired. We are about to start the fabrication of test components and prototyping of the correlation polarimeter.

Academic Significance and Societal Importance of the Research Achievements

ミリ波・サブミリ波帯の電磁波の波面を画像として撮影できるカメラが実現すれば、電波望遠鏡の受信機ビームや光学素子の特性を測定して評価することが、従来よりもずっと高速にできるようになる。これによって、学術的には電波望遠鏡の高性能化・高機能化が見込め、次世代電波望遠鏡の実現を技術的に後押しする。また社会的にも、この波長帯の電磁波のさまざまな応用の可能性を押し拡げられると期待できる。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (19 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (13 results) (of which Int'l Joint Research: 5 results,  Invited: 1 results)

  • [Int'l Joint Research] Institut Neel/CNRS/LPSC-IN2P3(フランス)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Correlation Polarimeter for Millimeter-Wave Wavefront Sensing2023

    • Author(s)
      Makoto Nagai, Hiroaki Imada, Tom Nitta, Yosuke Murayama, Ryohei Noji, and Masato Naruse
    • Journal Title

      URSI Radio Science Letters

      Volume: 4

    • DOI

      10.46620/22-0044

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Configuration of Probe Tones for MKID Readout with Frequency Sweeping Scheme2022

    • Author(s)
      Nagai M.、Murayama Y.、Nitta T.、Suzuki R.、Hikawa R.、Miyazawa H.、Noji R.、Kiuchi H.、Sekimoto Y.、Matsuo H.、Shan W.、Naruse M.、Noguchi T.、Kuno N.、Monfardini A.、Macias-Perez J.、Goupy J.、Calvo M.、Catalano A.
    • Journal Title

      Journal of Low Temperature Physics

      Volume: 209 Issue: 3-4 Pages: 677-685

    • DOI

      10.1007/s10909-022-02865-y

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Factorization of Antenna Efficiency of Aperture-type antenna: Beam Coupling and Two Spillovers2020

    • Author(s)
      Nagai, M. ; Imada, H. ; Okumura, T.
    • Journal Title

      IEEE Transactions on Antennas and Propagation

      Volume: Early Access Issue: 7 Pages: 3750-3757

    • DOI

      10.1109/tap.2020.3044381

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Analytical expression of aperture efficiency affected by Seidel aberrations2020

    • Author(s)
      Imada, Hiroaki; Nagai, Makoto
    • Journal Title

      Optics Express

      Volume: 28 Issue: 16 Pages: 23075-23090

    • DOI

      10.1364/oe.392787

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Resonance Spectra of Coplanar Waveguide MKIDs Obtained Using Frequency Sweeping Scheme2020

    • Author(s)
      M. Nagai, Y. Murayama, T. Nitta, H. Kiuchi, Y. Sekimoto, H. Matsuo, W. Shan, M. Naruse & T. Noguchi
    • Journal Title

      Journal of Low Temperature Physics

      Volume: 199 Issue: 1-2 Pages: 250-257

    • DOI

      10.1007/s10909-019-02262-y

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 野辺山45 m電波望遠鏡搭載用100-GHz帯電波カメラの解析パイプラインの開発2023

    • Author(s)
      永井 誠, 李豪純, 石崎悠治, 本多俊介, 久野成夫, 新田冬夢, 村山洋佑, 松尾宏, 中井直正, 関本裕太郎, 45m 運用メンバー
    • Organizer
      日本天文学会2023年春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 野辺山45m電波望遠鏡に搭載した100-GHz帯MKIDカメラの2022年試験観測の状況と雑音性能評価に向けた開発2023

    • Author(s)
      本多俊介,永井誠,村山洋佑,新田冬夢,李豪純,石崎悠治,久野成夫,松尾宏,野口卓,成瀬雅人,関本裕太郎,中井直正,45m運用メンバー
    • Organizer
      日本天文学会2023年春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 野辺山45m電波望遠鏡100-GHz帯MKIDカメラ搭載試験におけるビーム特性の評価2023

    • Author(s)
      李豪純,永井誠,本多俊介,石崎悠治,久野成夫,新田冬夢,村山洋佑,松尾宏,中井直正,関本裕太郎,45m運用メンバー
    • Organizer
      日本天文学会2023年春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 野辺山45m電波望遠鏡100-GHz帯MKIDカメラによる大質量星形成領域W49Aの観測データの解析2023

    • Author(s)
      石崎悠治,永井誠,本多俊介,李豪純,久野成夫,新田冬夢,村山洋佑,松尾宏,中井直正,関本裕太郎,45m運用メンバー
    • Organizer
      日本天文学会2023年春季年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Correlation Polarimeter for Millimeter-wave Wavefront Sensing2022

    • Author(s)
      Makoto Nagai, Hiroaki Imada, Tom Nitta, Yosuke Murayama, Ryohei Noji, Masato Naruse
    • Organizer
      2022 URSI-Japan Radio Science Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Aperture Efficiency of Multi-beam Axisymmetric Dual-reflector Antenna2022

    • Author(s)
      Makoto NAGAI, Hiroaki Imada
    • Organizer
      RIKEN-NICT-East Asia Receiver Joint Workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 電波点回折干渉計のための超伝導回路を用いた相関型偏波計の試作に向けた設計2022

    • Author(s)
      永井 誠, 野地 涼平, 今田 大皓, 新田 冬夢, 村山 洋佑, 成瀬 雅人
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 電波点回折干渉計のための超伝導回路を用いた相関型偏波計の設計2022

    • Author(s)
      永井 誠, 野地 涼平, 今田 大皓, 新田 冬夢, 村山 洋佑, 成瀬 雅人
    • Organizer
      第22回ミリ波・サブミリ波受信機ワークショップ
    • Related Report
      2021 Research-status Report
  • [Presentation] Configuration of Probe Tones for MKID Readout with Frequency Sweeping Scheme2021

    • Author(s)
      M. Nagai, Y. Murayama, T. Nitta, R. Suzuki, R. Hikawa, H. Miyazawa, R. Noji, H. Kiuchi, Y. Sekimoto, H. Matsuo, W. Shan, M. Naruse, T. Noguchi, N. Kuno, A. Monfardini, J. Macias-Perez, J. Goupy, M. Calvo, & A. Catalano
    • Organizer
      The 19th International Workshop on Low Temperature Detectors (LTD19)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] MKID Camera for Nobeyama 45-m Radio Telescope2021

    • Author(s)
      Makoto Nagai
    • Organizer
      Tsukuba Global Science Week 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 多ビーム軸対称双反射鏡アンテナの中心ビーム開口能率2021

    • Author(s)
      永井 誠, 今田 大皓
    • Organizer
      日本天文学会
    • Related Report
      2020 Research-status Report
  • [Presentation] Design of correlation polarimeter with superconducting circuit for Radio Point Diffraction Interferometer2020

    • Author(s)
      Makoto NAGAI
    • Organizer
      21st EARX workshop
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 電波点回折干渉計のための超伝導回路を用いた相関型偏波計の設計2020

    • Author(s)
      永井誠ほか
    • Organizer
      日本天文学会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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