惑星分光観測衛星プロジェクトチーム
Profile Information
- Affiliation
- Associate Professor, Institute of Space and Astronautical Science, Japan Aerospace Exploration AgencyAssociate Professor, Graduate School of Science Department of Physics, The University of Tokyo
- Researcher number
- 20816657
- ORCID ID
https://orcid.org/0000-0003-3405-8334- J-GLOBAL ID
- 202001003658123136
- researchmap Member ID
- R000013368
Research highlights and news
See blog posts
Hello world!
I am an experimental astrophysicist with the main focuse set on gravitational wave searches and precision laser interferometry. My ultimate goal is to directly probe the very early Universe by observing primordial gravitational-wave backgrounds. I am currently an associate professor in the Space Astronomy and Astrophysics Department of ISAS, working for LISA, KAGRA and SILVIA by conduting a number of laboratory-scale experiemnts.
If you are interested in joining our group at ISAS in JAXA, please feel free to contact me.
Hobbies: reading, bonfiring, guitar (electric and acoustic) , studying Yokai
Video archive (1): AW80T, IYA2009 (K. Arai, D. Tatsumi and me in 2009)
Video archive (2): BS visual inspection (R. X. Adhikari and me in 2010)
Video archive (3): A scen behind LHO HIFO test (S. Ballmer, C. Wipf and me in 2013)
Research Interests
5Research History
6Education
5-
2007 - 2012
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2003 - 2007
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2000 - 2003
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1997 - 2000
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1991 - 1997
Committee Memberships
24-
Jun, 2025 - Present
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Jun, 2025 - Present
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May, 2025 - Present
Awards
13Papers
185-
Classical and Quantum Gravity, 42(10) 105007-105007, May 14, 2025 Peer-reviewedAbstract Future gravitational wave observation in space will demand improvement in the sensitivity of the local sensor for the drag-free control. This paper presents the proposal, design, and demonstration of a new laser interferometric sensor named Quadrature Interferometric Metrology of Translation and Tilt (QUIMETT) for the drag-free local sensor. QUIMETT enables simultaneous measurements of both translational displacement and tilts of a reflective object with a single interferometer package. QUIMETT offers a characteristic feature where the sensitivity to tilt is independent of the interference condition while maintaining the ability to measure the translational displacement for a range greater than the laser wavelength. The tilt-sensing function has been demonstrated in a prototype experiment. The tilt sensitivity remained unchanged in different interference conditions and stayed at 10 nrad Hz at 0.1 Hz.
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Physical Review D, 111(8), Apr 15, 2025 Peer-reviewedCorresponding author
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IEEE Transactions on Nuclear Science, 71(8) 1914-1923, Aug, 2024 Peer-reviewed
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Optics Express, May 2, 2024 Peer-reviewed
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Physical Review D, 109(2), Jan 10, 2024 Peer-reviewedLast author
Misc.
49-
The Astronomical Herald, Astronomical Society of Japan, 117(7) 458-463, Jun, 2024 InvitedCorresponding author
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28th IUGG General Assembly, G06p-024, Jul, 2023
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arXiv:2305.06579, May 11, 2023
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Handbook of Gravitational Wave Astronomy, 2105.06069 479-492, Jul 2, 2022 Peer-reviewedInvitedLead author
Books and Other Publications
7Presentations
43-
Multimessenger Astronomy Beyond the Standard Model and Quantum Sensing (Q-EYES 2025), Dec 10, 2025, the International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles InvitedThe detection of gravitational waves on ground has become a routine nowadays, providing various insight into astrophysics of compact objects and fundamental physics. While the ground-based detectors probe compact objects in the stellar mass range, the future space gravitational wave missions are expected to probe those with heavier masses. However, such a bright future would not be achieved without instrumentation activities because nobody has ever achieved the space gravitational wave detection to date. This talk aims to give an update on the research field and highlight some of the instrumentation activities, inviting discussion for possible synergies with other studies.
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NAOJ ATC users meeting, Sep 24, 2025
Teaching Experience
2-
May, 2024 - May, 2024Intensive course ``Gravitational wave observations and associated technologies'' (Kyushu University, Faculty of Science)
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Oct, 2023 - Feb, 2024Physics Seminar (The University of Tokyo)
Professional Memberships
8-
2022 - Present
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2019 - Present
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2017 - Present
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2014 - Present
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2009 - Present
Research Projects
12-
科学研究費助成事業, 日本学術振興会, Jun, 2024 - Mar, 2028
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科学研究費助成事業, 日本学術振興会, Apr, 2024 - Mar, 2027
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科学研究費助成事業 基盤研究(B), 日本学術振興会, Apr, 2020 - Mar, 2023
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戦略的研究開発経費, 宇宙航空研究開発機構宇宙科学研究所宇宙理学委員会, Apr, 2022 - Oct, 2022
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戦略的開発研究費, 宇宙航空研究開発機構宇宙科学研究所宇宙工学委員会, Apr, 2021 - Mar, 2022
Academic Activities
15-
Panel moderator, Session chair, etc.Astronomical Society of Japan, Sep 11, 2025 - Sep 11, 2025
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Panel moderator, Session chair, etc.National Astronomical Observatory of Japan, Apr 16, 2025 - Apr 17, 2025
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OthersJAXA (JAXA Tanegashima Space Center), Aug 14, 2023 - Aug 24, 2023
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Review, evaluationGottfried Wilhelm Leibniz Universität Hannover, Germany, Jul, 2023 - Aug, 2023
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Othersthe International Max Planck Research School on Gravitational Wave Astronomy (IMPRS-GW) at the Max Planck Institute for Gravitational Physics and Leibniz Universität Hannover, Aug, 2019 - Aug, 2023
Social Activities
32Other
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2021 - PresentA member for propelling the technological front-loading activities
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Jun, 2025 - Jun, 2025https://www.isas.jaxa.jp/outreach/isas_news/files/ISASnews531.pdf
● 指導学生等の数
6-
Fiscal Year2024年度(FY2024)Master’s program1Students under Cooperative Graduate School System3Students under Skills Acquisition System1
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Fiscal Year2023年度(FY2023)Doctoral program1Master’s program1Students under Cooperative Graduate School System3Students under Skills Acquisition System1
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Fiscal Year2022年度(FY2022)Doctoral program1Students under Cooperative Graduate School System2Students under Skills Acquisition System2
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Fiscal Year2021年度(FY2021)Students under Cooperative Graduate School System2Students under Skills Acquisition System1
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Fiscal Year2020年度(FY2020)Students under Cooperative Graduate School System2Students under Skills Acquisition System1
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Fiscal Year2019年度(FY2019)Students under Cooperative Graduate School System2
