Thermoelastic-damping noise from sapphire mirrors in a fundamental-noise-limited interferometer

Abstract

We report the first high-precision interferometer using large sapphire mirrors, and we present the first direct, broadband measurements of the fundamental thermal noise in these mirrors. Our results agree well with the thermoelastic-damping noise predictions of Braginsky, et al. [Phys. Lett. A 264, 1(1999)] and Cerdonio, et al.[Phys. Rev. D 63, 082003 (2001)], which have been used to predict the astrophysical reach of advanced interferometric gravitational wave detectors.

4 pages, 2 figures

References in corpus (6)

• Thermal noise in interferometric gravitational wave detectors due to dielectric optical coatings
• Thermodynamical fluctuations and photo-thermal shot noise in gravitational wave antennae
• Mechanical Loss in Tantala/Silica Dielectric Mirror Coatings
• Thermoelastic effects at low temperatures and quantum limits in displacement measurements
• Optical noise correlations and beating the standard quantum limit in advanced gravitational-wave detectors
• Direct Observation of Broadband Coating Thermal Noise in a Suspended Interferometer

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• Direct Measurement of Thermal Fluctuation of High-Q Pendulum