Wide field CMB polarization telescope with cryogenic Si lenses

• Project/Area Number: 17H01115
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Astronomy
• Research Institution: Japan Aerospace EXploration Agency
• Principal Investigator: Sekimoto Yutaro 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (70262152)
• Project Period (FY): 2017-04-01 – 2021-03-31
• Project Status: Completed (Fiscal Year 2021)
• Budget Amount: ¥44,070,000 (Direct Cost: ¥33,900,000、Indirect Cost: ¥10,170,000); Fiscal Year 2020: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000); Fiscal Year 2019: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000); Fiscal Year 2018: ¥15,340,000 (Direct Cost: ¥11,800,000、Indirect Cost: ¥3,540,000); Fiscal Year 2017: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
• Keywords: 宇宙マイクロ波背景放射 / ミリ波光学系 / 広視野偏光観測 / 極低温望遠鏡 / 反射防止加工 / 高誘電体レンズ / ミリ波広視野光学系 / 偏光観測 / 極低温 / Bモード偏光観測 / Siレンズ / 広帯域反射防止 / 宇宙科学 / 電波天文学 / 広視野望遠鏡 / 極低温観測装置 / 宇宙背景放射偏光

Outline of Final Research Achievements

Cosmic microwave background (CMB) polarization observations can trace primordial gravitational waves with B-mode polarization pattern caused by cosmic inflation. We have developed a wide-field millimeter-wave telescope suitable for CMB polarization observation. By observing broadband and wide field of CMB, it is possible to efficiently separate the foreground radiation from interstellar dust in the galactic plane. We have developed a broadband anti-reflection structure on a silicon (Si) lens which has a high refractive index and low loss. We have also succeeded a precise near-field beam pattern measurement of a wide-field telescope including a cross-polarization pattern.

Academic Significance and Societal Importance of the Research Achievements

本研究では広視野CMB偏光望遠鏡やその広角サイドローブの測定が実現した。これらは今後のCMB偏光実験や広視野ミリ波望遠鏡にも応用可能となる。高い屈折率かつ低損失のシリコンは、ミリ波光学系としてとても有望である。本研究による広帯域反射防止構造による大型のシリコンレンズは今後様々な分野で利用が可能となる。広視野CMB偏光望遠鏡の開発やその評価手法は、ミリ波天文学や大容量通信分野への発展につながる。

Research Products

• [Int'l Joint Research] CNRS/CNES/IRAP(フランス)
• [Int'l Joint Research] Univ. of Rome/Univ. of Milano(イタリア)
• [Int'l Joint Research] Univ. of California, Berkeley/NIST/Stanford Univ(米国)
• [Int'l Joint Research] McGill Univ./Univ. of British Colombia(カナダ)
• [Int'l Joint Research] University of California, Berkeley/University of California, San Diego/Stanford University(米国)
• [Int'l Joint Research] IRAP/IAS/LAL(フランス)
• [Int'l Joint Research] University of Rome/University of Milano/ASI(イタリア)
• [Int'l Joint Research] Cardiff university/University College of London(英国)
• [Int'l Joint Research] University of California, Berkeley/University of California, San Diego/Stanford University(米国)
• [Int'l Joint Research] IRAP/IAS/LAL(フランス)
• [Int'l Joint Research] University of Rome/University of Milano/ASI(イタリア)
• [Int'l Joint Research] Cardiff university/University College of London(英国)
• [Int'l Joint Research] MaxPlanck Institute(ドイツ)
• [Int'l Joint Research] IAS/LAL/IRAP(フランス)
• [Int'l Joint Research] University of Roma/University of Milano(イタリア)
• [Int'l Joint Research] Cardiff University(英国)
• [Journal Article] Fabrication of three-layer silicon antireflection structures in200?450??GHz using deep reactive ion etching (2021)
  • Author(s): Hasebe Takashi、Hayashi Tasuku、Shohmitsu Yoshinori、Nitta Tom、Matsuo Hiroshi、Sekimoto Yutato
  • Journal Title: Applied Optics Volume: 60 Issue: 33 Pages: 10462-10462
  • DOI: 10.1364/ao.441969
  • Peer Reviewed / Open Access
• [Journal Article] GroundBIRD: A CMB Polarization Experiment with MKID Arrays (2020)
  • Author(s): Lee K., Choi J., Genova-Santos R. T., Hattori M., Hazumi M., Honda S., et al.
  • Journal Title: Journal of Low Temperature Physics Volume: 200 Issue: 5-6 Pages: 384-391
  • DOI: 10.1007/s10909-020-02511-5
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Updated Design of the CMB Polarization Experiment Satellite LiteBIRD (2020)
  • Author(s): Hazumi, M, ..., H. Ishino, ..., M. Tsujimoto, ..., et al.
  • Journal Title: Journal of Low Temperature Physics Volume: 199 Issue: 3-4 Pages: 1107-1117
  • DOI: 10.1007/s10909-019-02329-w
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] LiteBIRD Cryogenic Chain: 100 mK Cooling with Mechanical Coolers and ADRs (2020)
  • Author(s): Duval Jean-Marc、Prouve Thomas、Shirron Peter、Shinozaki Keisuke、Sekimoto Yutaro、Hasebe Takashi、Vermeulen Gerard、Andre Jerome、Hazumi Masashi、Montier Ludovic、Mot Baptiste
  • Journal Title: Journal of Low Temperature Physics Volume: 199 Issue: 3-4 Pages: 730-736
  • DOI: 10.1007/s10909-020-02371-z
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Development of Multi-Layer Anti-Reflection Structures for Millimeter-Wave Silicon Optics Using Deep Reactive Ion Etching Process (2020)
  • Author(s): Hasebe Takashi、Hayashi Tasuku、Takakura Hayato、Sekimoto Yutaro、Ishikawa Kumi、Shohmitsu Yoshinori、Noda Kazuhusa、Saeki Satoshi、Ezoe Yuichiro、Nitta Tom
  • Journal Title: Journal of Low Temperature Physics Volume: 199 Issue: 1-2 Pages: 339-347
  • DOI: 10.1007/s10909-019-02286-4
  • Peer Reviewed / Open Access
• [Journal Article] Resonance Spectra of Coplanar Waveguide MKIDs Obtained Using Frequency Sweeping Scheme (2020)
  • 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
  • Peer Reviewed
• [Journal Article] Overview of the medium and high frequency telescopes of the LiteBIRD space mission (2020)
  • Author(s): Montier Ludovic、et al.
  • Journal Title: Proceedings of SPIE Volume: 11443 Pages: 250-250
  • DOI: 10.1117/12.2562243
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] LiteBIRD satellite: JAXA's new strategic L-class mission for all-sky surveys of cosmic microwave background polarization (2020)
  • Author(s): Hazumi Masashi、et al.
  • Journal Title: Proceedings of SPIE Volume: 11443 Pages: 249-249
  • DOI: 10.1117/12.2563050
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Concept design of low frequency telescope for CMB B-mode polarization satellite LiteBIRD (2020)
  • Author(s): Sekimoto Yutaro, et al.
  • Journal Title: Proceedings of SPIE Volume: 11453 Pages: 37-37
  • DOI: 10.1117/12.2561841
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Far-Sidelobe Antenna Pattern Measurement of LiteBIRD Low Frequency Telescope in 1/4 Scale (2019)
  • Author(s): Takakura Hayato、Sekimoto Yutaro、Inatani Junji、Kashima Shingo、Imada Hiroaki、Hasebe Takashi、Kaga Toru、Takeda Yoichi、Okada Norio
  • Journal Title: IEEE Transactions on Terahertz Science and Technology Volume: 9 Issue: 6 Pages: 598-605
  • DOI: 10.1109/tthz.2019.2937497
  • Peer Reviewed
• [Journal Article] Optimization of cryogenic architecture for LiteBIRD satellite using radiative cooling (2019)
  • Author(s): Hasebe Takashi、Sekimoto Yutaro、Dotani Tadayasu、Mitsuda Kazuhisa、Shinozaki Keisuke、Yoshida Seiji
  • Journal Title: Journal of Astronomical Telescopes, Instruments, and Systems Volume: 5 Issue: 04 Pages: 1-9
  • DOI: 10.1117/1.jatis.5.4.044002
  • Peer Reviewed
• [Journal Article] LiteBIRD: A Satellite for the Studies of B-Mode Polarization and Inflation from Cosmic Background Radiation Detection (2019)
  • Author(s): Hazumi M.、et al.
  • Journal Title: Journal of Low Temperature Physics Volume: 194 Issue: 5-6 Pages: 443-452
  • DOI: 10.1007/s10909-019-02150-5
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Concept design of the LiteBIRD satellite for CMB B-mode polarization (2018)
  • Author(s): Sekimoto Yutaro et al.
  • Journal Title: Proc.SPIE Int.Soc.Opt.Eng. Volume: 10698 Pages: 68-68
  • DOI: 10.1117/12.2313432
  • Int'l Joint Research
• [Journal Article] The optical design and physical optics analysis of a cross-Dragonian telescope for LiteBIRD (2018)
  • Author(s): Dotani Tadayasu、Hasebe Takashi、Hazumi Masashi、Inatani Junji、Ishino Hirokazu、Kashima Shingo、Katayama Nobuhiko、Kimura Kimihiro、Matsumura Tomotake、Nagata Ryo、Sekimoto Yutaro、Sugai Hajime、Suzuki Aritoki、Utsunomiya Shin、Imada Hiroaki
  • Journal Title: Proc.SPIE Int.Soc.Opt.Eng. Volume: 10698 Pages: 157-157
  • DOI: 10.1117/12.2312185
  • Int'l Joint Research
• [Journal Article] Thermal design utilizing radiative cooling for the payload module of LiteBIRD (2018)
  • Author(s): Hasebe Takashi、Kashima Shingo、Uozumi Satoru、Ishino Hirokazu、Utsunomiya Shin、Noda Hirofumi、Mitsuda Kazuhisa、Sekimoto Yutaro、Dotani Tadayasu、Matsumura Tomotake、Sugai Hajime、Tsujimoto Masahiro、Imada Hiroaki、Hazumi Masashi
  • Journal Title: Proc.SPIE Int.Soc.Opt.Eng. Volume: 10698 Pages: 1069864-1069864
  • DOI: 10.1117/12.2313034
  • Int'l Joint Research
• [Journal Article] Current design of the electrical architecture for the payload module of LiteBIRD (2018)
  • Author(s): Tsujimoto Masahiro、Nishino Haruki、Sekimoto Yutaro、Hazumi Masashi、Dotani Tadayasu、Ishino Hirokazu、Kibayashi Atsuko、Sakurai Yuki、Matsumura Tomotake、Dobbs Matt、Cliche Jean-Francois、Smecher Graeme、Suzuki Aritoki、Lee Adrian T.、Arnold Kam、Montier Ludovic、Mot Baptiste、Signorelli Giovanni、de Bernardis Paolo
  • Journal Title: Proceedings of SPIE Volume: 10698 Pages: 1069847-1069847
  • DOI: 10.1117/12.2311579
  • Int'l Joint Research
• [Journal Article] Design, Fabrication and Measurement of Pyramid-Type Antireflective Structures on Columnar Crystal Silicon Lens for Millimeter-Wave Astronomy (2018)
  • Author(s): Nitta T.、Sekimoto Y.、Hasebe T.、Noda K.、Sekiguchi S.、Nagai M.、Hattori S.、Murayama Y.、Matsuo H.、Dominjon A.、Shan W.、Naruse M.、Kuno N.、Nakai N.
  • Journal Title: Journal of Low Temperature Physics Volume: 193 Issue: 5-6 Pages: 976-983
  • DOI: 10.1007/s10909-018-2047-4
  • Peer Reviewed / Open Access
• [Journal Article] GroundBIRD: Observation of CMB Polarization with a Rapid Scanning and MKIDs (2018)
  • Author(s): Nagasaki T. et al.
  • Journal Title: Journal of Low Temperature Physics Volume: 193 Issue: 5-6 Pages: 1066-1074
  • DOI: 10.1007/s10909-018-2077-y
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The LiteBIRD Satellite Mission: Sub-Kelvin Instrument (2018)
  • Author(s): Suzuki A. et al. Tsujimoto, M. et al.
  • Journal Title: Journal of Low Temperature Physics Volume: 193 Issue: 5-6 Pages: 1048-1056
  • DOI: 10.1007/s10909-018-1947-7
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Concept Study of Optical Configurations for High-Frequency Telescope for LiteBIRD (2018)
  • Author(s): Hasebe T. et al. Tsujimoto, M. et al.
  • Journal Title: Journal of Low Temperature Physics Volume: 193 Issue: 5-6 Pages: 841-850
  • DOI: 10.1007/s10909-018-1915-2
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Analysis of Characteristics of Al MKID Resonators (2018)
  • Author(s): Noguchi Takashi、Dominjon A.、Sekimoto Yutaro
  • Journal Title: IEEE Transactions on Applied Superconductivity Volume: 28 Issue: 4 Pages: 1-6
  • DOI: 10.1109/tasc.2018.2809615
  • Peer Reviewed
• [Journal Article] Broadband Pillar-Type Antireflective Subwavelength Structures for Silicon and Alumina (2017)
  • Author(s): Nitta Tom、Sekimoto Yutaro、Noda Kazufusa、Sekiguchi Shigeyuki、Shu Shibo、Matsuo Hiroshi、Dominjon Agnes、Naruse Masato、Kuno Nario、Nakai Naomasa
  • Journal Title: IEEE Transactions on Terahertz Science and Technology Volume: 7 Issue: 3 Pages: 295-301
  • DOI: 10.1109/tthz.2017.2692045
  • Peer Reviewed
• [Presentation] LiteBIRD低周波望遠鏡スケールモデルの広視野偏光角測定の高精度化 (2022)
  • Author(s): 高倉隼人, 関本裕太郎, 中野遼, 稲谷順司, 鹿島伸悟, 杉本正宏
  • Organizer: 日本天文学会
• [Presentation] CMB偏光観測衛星LiteBIRDのミッション部の極低温熱設計 (2021)
  • Author(s): 小田切公秀, 西城大, 篠崎慶亮, 杉本諒, 小川博之, 松田フレドリック, 小栗秀悟, 関本裕太郎, 堂谷忠靖, 一色雅仁, 吉田誠至
  • Organizer: 宇宙科学技術連合講演会
• [Presentation] LiteBIRD leading role of JAXA (2019)
  • Author(s): Yutaro Sekimoto
  • Organizer: LiteBIRD kick-off symposium
  • Int'l Joint Research
• [Presentation] CMB 偏光観測衛星LiteBIRD ミッション定義フェーズ III (2019)
  • Author(s): 関本裕太郎
  • Organizer: 日本天文学会 2019年秋季年会
• [Presentation] CMB偏光観測衛星 LiteBIRD 極低温広視野望遠鏡の概念設計 (2018)
  • Author(s): 関本裕太郎
  • Organizer: 日本物理学会
• [Presentation] 極低温ミリ波観測システムで探るビッグバン以前の宇宙 (2018)
  • Author(s): 関本裕太郎
  • Organizer: 超伝導科学技術研究会
  • Invited
• [Presentation] 宇宙マイクロ波背景放射偏光観測衛星LiteBIRDの検証計画 (2018)
  • Author(s): 関本裕太郎
  • Organizer: 宇宙科学技術連合
• [Presentation] CMB偏光観測衛星LiteBIRD概念設計 II (2018)
  • Author(s): 関本裕太郎
  • Organizer: 日本天文学会
• [Presentation] CMB偏光観測衛星 LiteBIRD概念設計 (2018)
  • Author(s): 関本裕太郎
  • Organizer: 日本天文学会
• [Presentation] 極低温ミリ波観測システムで探るビッグバン以前の宇宙 (2018)
  • Author(s): 関本裕太郎
  • Organizer: 日本未踏学会
• [Presentation] CMB 偏光観測衛星 LiteBIRD概念設計インフレーション起源の原始重力波の探索 (2018)
  • Author(s): 関本裕太郎
  • Organizer: 宇宙科学シンポジウム
• [Remarks] 宇宙科学研究所
  • URL: http://www.isas.jaxa.jp