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Thermoelastic-Damping Noise from Sapphire Mirrors in a Fundamental-Noise-Limited Interferometer

Black, Eric D. and Villar, Akira and Libbrecht, Kenneth G. (2004) Thermoelastic-Damping Noise from Sapphire Mirrors in a Fundamental-Noise-Limited Interferometer. Physical Review Letters, 93 (24). Art. No. 241101. ISSN 0031-9007. doi:10.1103/PhysRevLett.93.241101.

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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. [V. B. Braginsky, M. L. Gorodetsky, and S. P. Vyatchanin, Phys. Lett. A 264, 1 (1999)] and Cerdonio et al. [M. Cerdonio, L. Conti, A. Heidmann, and M. Pinard, 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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Libbrecht, Kenneth G.0000-0002-8744-3298
Additional Information:©2004 The American Physical Society (Received 30 August 2004; published 7 December 2004) This work was supported by the NSF under Grant No. PHY01-07417.
Subject Keywords:mirrors; noise; thermoelasticity; sapphire; light interferometers; gravitational wave detectors
Issue or Number:24
Record Number:CaltechAUTHORS:BLAprl04
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6699
Deposited By: Archive Administrator
Deposited On:18 Dec 2006
Last Modified:08 Nov 2021 20:36

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