Rayleigh scattering in sapphire test mass for laser interferometric gravitational-wave detectors: II: Rayleigh scattering induced noise in a laser interferometric-wave detector

摘要

The level of noise induced by Rayleigh-scattered light from sapphire test mass, the limit of scattering loss on build-up power inside the interferometer and the tolerable absorption loss in order to meet the specification of the interferometer sensitivity are presented. The results show that the Rayleigh scattering induced noise remains below h to approximately 10~(-25) Hz~(-1/2); and a higher tolerance on the absorption level in sapphire substrate compared with silica substrate.