Resonance introduction control for FP cavity that has long optical storage time for 3rd generation gravitational wave detectors

• Project/Area Number: 25287052
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: Miyoki Shinji 東京大学, 宇宙線研究所, 准教授 (20302680)
• Co-Investigator(Kenkyū-buntansha): 廣瀬 榮一 東京大学, 宇宙線研究所, 特任研究員(移行) (60587757) ; 宮川 治 東京大学, 宇宙線研究所, 助教 (90532680) ; 大橋 正健 東京大学, 宇宙線研究所, 教授 (80213833)
• Project Period (FY): 2013-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000); Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2014: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000); Fiscal Year 2013: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
• Keywords: Fabry-Perot共振器 / 重力波 / レーザー干渉計 / PDH法 / 誘電多層膜 / 超精密長さ計測 / ファブリ・ペロー共振器 / 高品質鏡 / 高品質研磨 / 制御工学

Outline of Final Research Achievements

We have succeeded to demonstrated a Fabry-Perot cavity resonance that had longer optical storage time than about 10 milliseconds which was realized in the 2nd generation gravitational wave telescope. This demonstration is essential to realize the resonant-sideband-extraction method that has larger signal recycling gain, that is about 50, in the 3rd generation gravitational wave telescope (GWT) than that in the 2nd generation GWT.

Research Products

• [Journal Article] The status of KAGRA underground cryogenic gravitational wave telescope (2018)
  • Author(s): Yuta Michimura and KAGRA Collaboration
  • Journal Title: Journal of Physics: Conference Series Volume: 印刷中
  • Peer Reviewed / Open Access
• [Journal Article] A New Window to Observe the Universe—Gravitational Waves— (2017)
  • Author(s): 三代木伸二
  • Journal Title: RADIOISOTOPES Volume: 66 Issue: 2 Pages: 61-75
  • DOI: 10.3769/radioisotopes.66.61
  • NAID: 130005332376
  • ISSN: 0033-8303, 1884-4111
• [Presentation] KAGRA Large-scale CryogenicGravitational wave Telescope Project in Japan (2017)
  • Author(s): Shinji Miyoki and KAGRA Collaboration
  • Organizer: 13th International Conference on Gravitation, Astrophysics, and Cosmology
  • Int'l Joint Research / Invited
• [Presentation] Present Status of KAGRA (and Future Ground Based GWDs) (2017)
  • Author(s): Shinji Miyoki and KAGRA Collaboration
  • Organizer: Tanaka-Shingakuzyutu Kick-Off Meeting
  • Invited
• [Presentation] 宇宙を観測する新しい窓 重力波 (2016)
  • Author(s): 三代木伸二とKAGRAコラボレーション
  • Organizer: 原子衝突学会
  • Place of Presentation: 富山大学、富山県・富山市
  • Year and Date: 2016-12-10
  • Invited
• [Presentation] 宇宙を観測する新しい窓 重力波 (2016)
  • Author(s): 三代木伸二
  • Organizer: 先端加速器科学技術推進協議会技術部会
  • Place of Presentation: 富士ソフトアキバプラザ 、東京都・千代田区
  • Year and Date: 2016-11-10
  • Invited
• [Presentation] 重力波天文学始まる！ (2016)
  • Author(s): 三代木伸二
  • Organizer: 真空学会
  • Place of Presentation: 東茂住地区北部会館、岐阜県・飛騨市
  • Year and Date: 2016-08-09
  • Invited
• [Presentation] KAGRA 重力波望遠鏡とその超精密長さ計測を支える技術 (2016)
  • Author(s): 三代木伸二
  • Organizer: 日本空気清浄協会
  • Place of Presentation: 連合会館、東京都・千代田区
  • Year and Date: 2016-04-06
  • Invited
• [Presentation] Present status of KAGRA cryogenic gravitational wave telescope (2015)
  • Author(s): S.Miyoki and KAGRA Collaboration
  • Organizer: TAUP 2015
  • Place of Presentation: Torino, Italy
  • Year and Date: 2015-09-09
  • Int'l Joint Research / Invited
• [Presentation] 重力波研究と大型低温重力波望遠鏡KAGRA (2014)
  • Author(s): 三代木伸二
  • Organizer: International Linear Collider 研究会
  • Place of Presentation: 鳥取県
  • Year and Date: 2014-07-21
  • Invited
• [Presentation] KAGRA Facility (2013)
  • Author(s): S.Miyoki
  • Organizer: 2nd ELITES Meeting
  • Place of Presentation: EU House, Minatoku, Tokyo, Japan
  • Year and Date: 2013-12-04
• [Presentation] Present Status of KAGRA (2013)
  • Author(s): S.Miyoki
  • Organizer: Japan-Korea Workshop
  • Place of Presentation: Seoul Univ., Seoul, Korea
  • Year and Date: 2013-11-29
• [Presentation] 極限光計測技術で探る時空と巨視的量子性 (2013)
  • Author(s): 三代木伸二
  • Organizer: 日本光学会・シンポジウム「光共鳴トラッピングと物質マニピュレーション」
  • Place of Presentation: 新公会堂、奈良、日本
  • Year and Date: 2013-11-13
• [Presentation] KAGRA Large-scale Cryogenic Gravitational wave Telescope in Japan (2013)
  • Author(s): S.Miyoki and KAGRA Collaboration
  • Organizer: NSS/IEEE
  • Place of Presentation: COEX, Seoul, Korea
  • Year and Date: 2013-10-28
  • Invited
• [Presentation] Current status of KAGRA Large-scale Cryogenic Gravitational wave Telescope Project in Japan (2013)
  • Author(s): S.Miyoki and KAGRA Collaboration
  • Organizer: Hot Topics in General Relativity and Gravitation
  • Place of Presentation: ICISE, Qui Nhon, Vietnam
  • Year and Date: 2013-08-01
  • Invited