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

Eric D. Black·Akira Villar·Kenneth G. Libbrecht
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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.

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Eric D. Black, Akira Villar, Kenneth G. Libbrecht. 2004-10-06. Thermoelastic-damping noise from sapphire mirrors in a fundamental-noise-limited interferometer. https://doi.org/10.1103/physrevlett.93.241101

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