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19 April 2024

» arxiv » gr-qc/0007071

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Mechanical quality factor of a sapphire fiber at cryogenic temperatures
T. Uchiyama ; T. Tomaru ; D. Tatsumi ; S. Miyoki ; M. Ohashi ; K. Kuroda ; T. Suzuki ; A. Yamamoto ; T. Shintomi ;
Date:	27 Jul 2000
Journal:	Phys.Lett. A273 (2000) 310-315
Subject:	gr-qc
Abstract:	A mechanical quality factor of $1.1 imes 10^{7}$ was obtained for the 199 Hz bending vibrational mode in a monocrystalline sapphire fiber at 6 K. Consequently, we confirm that pendulum thermal noise of cryogenic mirrors used for gravitational wave detectors can be reduced by the sapphire fiber suspension.
Source:	arXiv, gr-qc/0007071
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