Direct observation of broadband coating thermal noise in a suspended interferometer

被引：32

作者：

Black, ED

Villar, A

Barbary, K

Bushmaker, A

Heefner, J

Kawamura, S

Kawazoe, F

Matone, L

Meidt, S

Rao, SR

Schulz, K

Zhang, M

Libbrecht, KG

机构：

[1] CALTECH, LIGO Project, Pasadena, CA 91125 USA

[2] Natl Astron Observ Japan, Tokyo 1818588, Japan

来源：

PHYSICS LETTERS A | 2004年 / 328卷 / 01期

基金：

美国国家科学基金会;

关键词：

gravitational waves; interferometry; thermal noise;

D O I：

10.1016/j.physleta.2004.05.052

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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. (C) 2004 Elsevier B.V. All rights reserved.

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页码：1 / 5

页数：5

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