Yuta Michimura

Jan 29, 2024 | link.aps.org | LIGO Laboratory |Japan Science |Haoyu Wang |Yuta Michimura

Crystalline materials are promising candidates as substrates or high-reflective coatings of mirrors to reduce thermal noises in future laser interferometric gravitational wave detectors. However, birefringence of such materials could degrade the sensitivity of gravitational wave detectors, not only because it can introduce optical losses, but also because its fluctuations create extra phase noise in the arm cavity reflected beam.