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Enabling next generation of gravitational waves detectors with thermo-optics.

Research Project

Project/Area Number 24K21551
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 15:Particle-, nuclear-, astro-physics, and related fields
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

Eisenmann Marc  国立天文台, 重力波プロジェクト, 特任研究員 (80984541)

Project Period (FY) 2024-06-28 – 2026-03-31
Project Status Granted (Fiscal Year 2024)
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)
Keywordsgravitational wave / birefringence / thermo-optic
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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Published: 2024-07-03   Modified: 2024-08-28  

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