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Development of the HWP polarimeter with a TES detector for inflationary probe

Research Project

Project/Area Number 18KK0083
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Matsumura Tomotake  東京大学, カブリ数物連携宇宙研究機構, 准教授 (70625003)

Co-Investigator(Kenkyū-buntansha) 高倉 理  国立研究開発法人国立環境研究所, 地球システム領域, 特別研究員 (30811525)
片山 伸彦  東京大学, カブリ数物連携宇宙研究機構, 教授 (50290854)
櫻井 雄基  岡山大学, 自然科学学域, 特任助教 (50780847)
石野 宏和  岡山大学, 自然科学学域, 教授 (90323782)
Project Period (FY) 2018-10-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2020: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2019: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords偏光 / ミリ波 / 宇宙論 / インフレーション / 反射防止 / 変調器 / 角度較正 / TESボロメータ / 広帯域反射防止技術 / 精密偏光観測技術 / 宇宙マイクロ波背景放射 / ミリ波天文楽 / ミリ波反射防止 / インフレーション探索 / 偏光観測 / 気球観測実験 / 偏光変調器 / 極低温検出器 / 気球観測 / 偏光測定 / 超電導検出器 / CMB
Outline of Final Research Achievements

We carry out research with international partners (the US, France, Italy, and Germany) to probe the inflationary universe using cosmic microwave background (CMB) polarization measurements. Specifically, we listed four achievements: 1) participating French/CNES-led far-infrared balloon-bone telescope, PILOT, launched from Timmins in Canada, 2) development of a polarization modulator, including delivering a laser-machined moth-eye structure-based alumina filter to the MUSTANG2 receiver on Greenbank telescope as a byproduct from this development, 3) noise characterization of TES bolometer, and 4) simulation-based angle calibration feasibility study using blind analysis. Although we face COVID-19 and need to change international collaboration on a best-effort basis, we could establish the foundation of international collaboration that can last beyond this proposal term with the list of achievements above.

Academic Significance and Societal Importance of the Research Achievements

本研究は宇宙の始まりにあったとするインフレーション仮説の検証に向けた一歩であり、その発見また上限の更新に向けた開発は教科書を塗りかえる成果への礎である。技術的には特に本研究で作製したアルミナ赤外線吸収フィルターは、微細加工面積として世界一の大面積を実現し、また世界で初めて観測に用いたという点でアイディアが実現化された大きなマイルストーンとなった。社会的には、ミリ波技術はBeyond5Gに対応する帯域であることから反射防止加工技術や評価方法など、開発したさまざまな成果が産業応用も考えられるために意義深い。

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (53 results)

All 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (14 results) Journal Article (23 results) (of which Int'l Joint Research: 15 results,  Peer Reviewed: 17 results,  Open Access: 21 results) Presentation (15 results) (of which Int'l Joint Research: 12 results,  Invited: 3 results) Remarks (1 results)

  • [Int'l Joint Research] ミネソタ大学/University of Pennsylvania(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] パリ大学/IRAP/Institut d'Astrophysique Spatiale(フランス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ハノーファーレーザー中央研究所/マックス・プランク天体物理学研究所(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] デルフト大学(オランダ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] SISSA(イタリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ミネソタ大学/カリフォルニア州立大学/ローレンス・バークレー国立研究所(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ハノーファー・レーザー研究所(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] オックスフォード大学(英国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] パリ大学(フランス)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ミネソタ大学/カリフォルニア大学バークレー校/ローレンス・バークレー国立研究所(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] パリ大学(フランス)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ハノーファー・レーザー研究所(ドイツ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Institut d'Astrophysique Spatiale (IAS)/IRAP/APC(フランス)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Lawrence Berkeley National Laboratory/University of Minnesota, Twin Cities(米国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Modelling TES non-linearity induced by a rotating HWP in a CMB polarimeter2023

    • Author(s)
      Tommaso Ghigna
    • Journal Title

      Journal of Low Temperature Physics

      Volume: n/a Issue: 5-6 Pages: 357-365

    • DOI

      10.1007/s10909-023-02939-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Performance of the polarization leakage correction in the PILOT data2023

    • Author(s)
      Bernard Jean-Philippe、Bernard Adam、Roussel, Helene、Choubani Ilyes、Alina Dana、Aumont Jonathan、Hughes Annie et al.
    • Journal Title

      Experimental Astronomy

      Volume: - Issue: 1 Pages: 197-222

    • DOI

      10.1007/s10686-022-09882-5

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Polarization angle requirements for CMB B-mode experiments. Application to the LiteBIRD satellite2022

    • Author(s)
      LiteBIRD Collaboration: Vielva P.、Martinez-Gonzalez E.、Casas F. J.、...、Shiraishi M. et al.
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2022 Issue: 04 Pages: 029-029

    • DOI

      10.1088/1475-7516/2022/04/029

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Probing Cosmic Inflation with the LiteBIRD Cosmic Microwave Background Polarization Survey2022

    • Author(s)
      LiteBIRD Collaboration、他
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: ptac150 Issue: 4 Pages: 1-143

    • DOI

      10.1093/ptep/ptac150

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Vibration Characteristics of a Continuously Rotating Superconducting Magnetic Bearing and Potential Influence to TES and SQUID2022

    • Author(s)
      Sugiyama S.、Ghigna T.、Hoshino Y.、Katayama N.、Katsuda S.、Komatsu K.、Matsumura T.、Sakurai Y.、Sato K.、Takaku R.、Tashiro M.、Terada Y.
    • Journal Title

      Journal of Low Temperature Physics

      Volume: 209 Issue: 5-6 Pages: 1088-1096

    • DOI

      10.1007/s10909-022-02846-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Performance of a 200?mm Diameter Achromatic HWP with Laser-Ablated Sub-Wavelength Structures2022

    • Author(s)
      Takaku R.、Ghigna T.、Hanany S.、Hoshino Y.、Ishino H.、Katayama N.、Komatsu K.、Konishi K.、Kuwata-Gonokami M.、Matsumura T.、Sakurai H.、Sakurai Y.、Wen Q.、Yamasaki N. Y.、Yumoto J.、for the?LiteBIRD?collaboration
    • Journal Title

      Journal of Low Temperature Physics

      Volume: - Issue: 5-6 Pages: 346-356

    • DOI

      10.1007/s10909-022-02922-6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sensitivity Modeling for LiteBIRD2022

    • Author(s)
      LiteBIRD Collaboration: Hasebe T.、Ade P. A. R.、Adler A.、...、Shiraishi M. et al.
    • Journal Title

      Journal of Low Temperature Physics

      Volume: - Issue: 5-6 Pages: 384-397

    • DOI

      10.1007/s10909-022-02921-7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] In-flight polarization angle calibration for LiteBIRD: blind challenge and cosmological implications2022

    • Author(s)
      LiteBIRD Collaboration: Krachmalnicoff N.、Matsumura T.、de la Hoz E.、...、Shiraishi M. et al.
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2022 Issue: 01 Pages: 039-039

    • DOI

      10.1088/1475-7516/2022/01/039

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Large diameter millimeter-wave low-pass filter made of alumina with laser ablated anti-reflection coating2021

    • Author(s)
      Takaku Ryota、Wen Qi、Cray Scott、Devlin Mark、Dicker Simon、Hanany Shaul、Hasebe Takashi、Iida Teruhito、Katayama Nobuhiko、Konishi Kuniaki、Kuwata-Gonokami Makoto、Matsumura Tomotake、Mio Norikatsu、Sakurai Haruyuki、Sakurai Yuki、Yamada Ryohei、Yumoto Junji
    • Journal Title

      Optics Express

      Volume: 29 Issue: 25 Pages: 41745-41745

    • DOI

      10.1364/oe.444848

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Design of a frequency-independent optic axis Pancharatnam-based achromatic half-wave plate2021

    • Author(s)
      Komatsu Kunimoto、Ishino Hirokazu、Katayama Nobuhiko、Matsumura Tomotake、Sakurai Yuki
    • Journal Title

      Journal of Astronomical Telescopes, Instruments, and Systems

      Volume: 7 Issue: 03 Pages: 034005-034005

    • DOI

      10.1117/1.jatis.7.3.034005

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Picosecond laser ablation of millimeter-wave subwavelength structures on alumina and sapphire2021

    • Author(s)
      Wen Qi、Fadeeva Elena、Hanany Shaul、Koch Juergen、Matsumura Tomotake、Takaku Ryota、Young Karl
    • Journal Title

      Optics & Laser Technology

      Volume: 142 Pages: 107207-107207

    • DOI

      10.1016/j.optlastec.2021.107207

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Picosecond laser ablation of millimeter-wave subwavelength structures on alumina and sapphire2021

    • Author(s)
      Qi Wen, Elena Fadeeva, Shaul Hanany, Juergen Koch, Tomotake Matsumura, Ryota Takaku, Karl Young
    • Journal Title

      Optics and Laser Technology

      Volume: N.A.

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Breadboard model of polarization modulator unit based on a continuously rotating half-wave plate for the low-frequency telescope of the LiteBIRD space mission2020

    • Author(s)
      Sakurai Yuki et. al.
    • Journal Title

      SPIE, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X

      Volume: 11453 Pages: 743-762

    • DOI

      10.1117/12.2560289

    • Related Report
      2020 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Mechanical strength and millimeter-wave transmission spectrum of stacked sapphire plates bonded by sodium silicate solution2020

    • Author(s)
      Toda Takayuki、Ishino Hirokazu、Komatsu Kunimoto、Matsumura Tomotake、Sakurai Yuki、Katayama Nobuhiko
    • Journal Title

      SPIE, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X

      Volume: 11453 Pages: 788-799

    • DOI

      10.1117/12.2562366

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Journal Article] Demonstration of anti-reflective structures over a large area for CMB polarization experiments2020

    • Author(s)
      Takaku Ryota、Hanany Shaul、Hoshino Yurika、Imada Hiroaki、Ishino Hirokazu、Katayama Nobuhiko、Komatsu Kunimoto、Konishi Kuniaki、Kuwata Gonokami Makoto、Matsumura Tomotake、Mitsuda Kazuhisa、Sakurai Haruyuki、Sakurai Yuki、Wen Qi、Yamasaki Noriko、Young Karl、Yumoto Junji
    • Journal Title

      SPIE, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X

      Volume: 11453 Pages: 236-247

    • DOI

      10.1117/12.2562028

    • Related Report
      2020 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Demonstration of five-layer phase-flat achromatic half-wave plate with anti-reflective structures and superconducting magnetic bearing for CMB polarization experiments2020

    • Author(s)
      Komatsu Kunimoto、Ishino Hirokazu、Kataza Hirokazu、Konishi Kuniaki、Kuwata-Gonokami Makoto、Katayama Nobuhiko、Sugiyama Shinya、Matsumura Tomotake、Sakurai Haruyuki、Sakurai Yuki、Takaku Ryota、Yumoto Junji
    • Journal Title

      SPIE, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X

      Volume: 11453 Pages: 779-794

    • DOI

      10.1117/12.2560486

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Journal Article] Design and demonstration of the frequency independent fast axis of the Pancharatnam base multi-layer half-wave plate for CMB polarization experiment2020

    • Author(s)
      Komatsu Kunimoto、Ishino Hirokazu、Katayama Nobuhiko、Matsumura Tomotake、Sakurai Yuki、Takaku Ryota
    • Journal Title

      Proc. SPIE 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X, 114534B

      Volume: N.A. Pages: 147-147

    • DOI

      10.1117/12.2562092

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Journal Article] Evaluation of reconstructed angular error of a continuous rotating HWP for LiteBIRD2020

    • Author(s)
      Sugiyama Shinya、Matsumura Tomotake、Sakurai Yuki、Katayama Nobuhiko、Takakura Satoru、Tashiro Makoto、Terada Yukikatsu、Sato Kosuke、Katsuda Satoru、Hoshino Yurika、Takaku Ryota、Komatsu Kunimoto
    • Journal Title

      Proc. SPIE 11443, Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave, 114436X

      Volume: N.A. Pages: 114436-114436

    • DOI

      10.1117/12.2576290

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Journal Article] Broadband, millimeter-wave anti-reflective structures on sapphire ablated with femto-second laser2020

    • Author(s)
      Takaku R.、Hanany S.、Imada H.、Ishino H.、Katayama N.、Komatsu K.、Konishi K.、Kuwata-Gonokami M.、Matsumura T.、Mitsuda K.、Sakurai H.、Sakurai Y.、Wen Q.、Yamasaki N. Y.、Young K.、Yumoto J.
    • Journal Title

      Journal of Applied Physics

      Volume: 128 Issue: 22 Pages: 225302-225302

    • DOI

      10.1063/5.0022765

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Requirements for future CMB satellite missions: photometric and band-pass response calibration2020

    • Author(s)
      Ghigna T.、Matsumura T.、Patanchon G.、Ishino H.、Hazumi M.
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2020 Issue: 11 Pages: 030-030

    • DOI

      10.1088/1475-7516/2020/11/030

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Design of a Testbed for the Study of System Interference in Space CMB Polarimetry2020

    • Author(s)
      Ghigna T.、Matsumura T.、Hazumi M.、Stever S. L.、Sakurai Y.、Katayama N.、Suzuki A.、Westbrook B.、Lee A. T.
    • Journal Title

      Journal of Low Temperature Physics

      Volume: 199 Issue: 3-4 Pages: 622-630

    • DOI

      10.1007/s10909-020-02359-9

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Modelling the Energy Losses of a Superconducting Magnetic Bearing due to the Change of the Levitation Height Under Gravity2020

    • Author(s)
      Y. Ishida, H. Enokida, D. Ahmad, Y. Terao, H. Ohsaki, Y. Sakurai, H. Sugai, T. Matsumura and N. Katayama
    • Journal Title

      Superconductor Science and Technology

      Volume: -

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Bandpass mismatch error for satellite CMB experiments II: correcting for the spurious signal2019

    • Author(s)
      Ranajoy Banerji, Guillaume Patanchon, Jacques Delabrouille, Masashi Hazumi, Duc Thuong Hoanga, Hirokazu Ishino and Tomotake Matsumura
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2019 Issue: 07 Pages: 043-043

    • DOI

      10.1088/1475-7516/2019/07/043

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Impact of the effective thickness from anti-reflective sub-wavelength structures in achromatic half-wave plate design2022

    • Author(s)
      Ryota Takaku et al.
    • Organizer
      SPIE, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Large diameter millimeter-wave low-pass filter made of alumina with laser ablated anti-reflection coating2022

    • Author(s)
      Ryota Takaku et al.
    • Organizer
      16 th international conference of laser ablation
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Scientific challenges expected from future space experiments2022

    • Author(s)
      Tomotake Matsumura
    • Organizer
      From Planck to the future of CMB
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Testing magnetic interference between TES detectors and the telescope environment for future CMB satellite missions2022

    • Author(s)
      Tommaso Ghigna et al.
    • Organizer
      SPIE, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Large diameter Millimeter-Wave Low-Pass Filter Made of Alumina with Laser Ablated Anti-reflection Coating2022

    • Author(s)
      Ryota Takaku
    • Organizer
      16 th international conference of laser ablation
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Evaluation of instrumental polarization of a 200 mm diameter achromatic HWP with anti-reflective structures and impact on TES non-linearity2021

    • Author(s)
      Ryota Takaku
    • Organizer
      19th International Workshop on Low Temperature Detectors (LTD19)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Modeling of Sensitivity of LiteBIRD2021

    • Author(s)
      Takashi Hasebe
    • Organizer
      19th International Workshop on Low Temperature Detectors (LTD19)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Potential extra noise from a continuously rotating HWP using superconducting magnetic bearing for CMB polarimetry2021

    • Author(s)
      Shinya Sugiyama
    • Organizer
      19th International Workshop on Low Temperature Detectors (LTD19)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Modelling TES non-linearity induced by a rotating HWP in a CMB polarimeter2021

    • Author(s)
      Tommaso Ghigna
    • Organizer
      19th International Workshop on Low Temperature Detectors (LTD19)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] CMB実験ミリ波光学素子を見据えたセラミック材のミリ波特性評価2021

    • Author(s)
      松村知岳
    • Organizer
      日本物理学会
    • Related Report
      2020 Research-status Report
  • [Presentation] LiteBIRD計画による インフレーション宇宙の探索2020

    • Author(s)
      松村知岳
    • Organizer
      日本物理学会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Modelling the Energy Losses of a Superconducting Magnetic Bearing due to the Change of the Levitation Height Under Gravity2020

    • Author(s)
      Y Ishida, H Enokida, D Ahmad, Y Terao, H Ohsaki, Y Sakurai, H Sugai, T Matsumura and N Katayama
    • Organizer
      10th ACASC - 2nd Asian ICMC - CSSJ
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Requirement and design trade off of the rotational mechanism for polarization modulator using superconducting magnetic bearing for LiteBIRD2020

    • Author(s)
      Tomotake Matsumura, Yuki Sakurai, Hajime Sugai, Nobuhiko Katayama, Yusuke Ishida, Hisashi Enokida, Doa Ahmad, Yutaka Terao, Hiroyuki Ohsaki, Ryota Takaku, Kunimoto Komatsu, Shinya Sugiyama, Yoshiki Nomura, Teruhito Iida, Hirokazu Kataza
    • Organizer
      10th ACASC - 2nd Asian ICMC - CSSJ
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] A far-infrared balloon-borne polarization experiment, PILOT2019

    • Author(s)
      松村知岳
    • Organizer
      大気球ワークショップ
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Design of a testbed for the study of system interference in space CMB polarimetry2019

    • Author(s)
      Ghigna, Tommaso
    • Organizer
      Low Temperature Detector 18
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 超短パルスレーザー加工技術で作製した蛾の目構造を世界で初めて電波望遠鏡に実装

    • URL

      https://www.ipmu.jp/ja/20220127-MUSTANG2

    • Related Report
      2022 Annual Research Report 2021 Research-status Report

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Published: 2018-10-12   Modified: 2024-01-30  

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