| Project/Area Number |
24K21551
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
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| Research Institution | National Astronomical Observatory of Japan |
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Principal Investigator |
Eisenmann Marc 国立天文台, 重力波プロジェクト, 特任研究員 (80984541)
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| Project Period (FY) |
2024-06-28 – 2026-03-31
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| Project Status |
Granted (Fiscal Year 2024)
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| Budget Amount *help |
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2025: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2024: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
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| Keywords | gravitational wave / birefringence / thermo-optic |
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| Outline of Research at the Start |
Operating at cryogenic temperatures is a promising approach to reduce the thermal noise of gravitational wave detectors that is limiting their most sensitive frequency band. However, the cryogenic operation requires the use of large crystalline substrates that can exhibit non-uniform birefringence.
We are aiming to demonstrate the use of thermo-optics to achieve 2D birefringence actuation and compensation while meeting the stringent requirements of gravitational wave detectors.
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