Direct observation of broadband coating thermal noise in a suspended interferometer

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• 作者：Black ; Eric D. ; Villar ; Akira ; Barbary ; Kyle ; Bushmaker ; Adam ; Heefner ; Jay ; Kawamura ; Seiji ; et. al.
• 关键词：04.89.Nn ; 07.60.Ly ; 95.45.+i ; 95.55.Ym ; Gravitational waves ; Interferometry ; Thermal noise
• 刊名：Physics Letters A
• 出版年：2004
• 出版时间：July 19, 2004
• 年：2004
• 卷：328
• 期：1
• 页码：1-5
• 全文大小：302 K

文摘

We have directly observed broadband thermal noise in silica/tantala coatings in a high-sensitivity Fabry–Perot interferometer. Our result agrees well with the prediction based on indirect, ring-down measurements of coating mechanical loss, validating that method as a tool for the development of advanced interferometric gravitational-wave detectors.