Brownian thermal noise in multilayer coated mirrors

  title={Brownian thermal noise in multilayer coated mirrors},
  author={Ting Hong and Huan Yang and Eric K. Gustafson and Rana X. Adhikari and Yanbei Chen},
  journal={Physical Review D},
We analyze the Brownian thermal noise of a multilayer dielectric coating used in high-precision optical measurements, including interferometric gravitational-wave detectors. We assume the coating material to be isotropic, and therefore study thermal noises arising from shear and bulk losses of the coating materials. We show that coating noise arises not only from layer thickness fluctuations, but also from fluctuations of the interface between the coating and substrate, driven by fluctuating… 

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