Wide-band measurement of mechanical thermal noise using a laser interferometer

被引：24

作者：

Kajima, M ^{[1
]}

Kusumi, N ^{[1
]}

Moriwaki, S ^{[1
]}

Mio, N ^{[1
]}

机构：

[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan

来源：

PHYSICS LETTERS A | 1999年 / 264卷 / 04期

关键词：

gravitational wave detector; fluctuation-dissipation theorem; thermal noise;

D O I：

10.1016/S0375-9601(99)00828-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the displacement thermal noise of a mechanical cantilever, made of phosphor bronze, using a laser interferometer. The measured noise spectrum agrees well with an estimation based on the fluctuation-dissipation theorem with a mechanical-admittance measurement. The frequency range where we could measure the thermal noise was from 50 to 500 Hz; this range is important for the noise characterization of interferometric gravitational wave detectors. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：251 / 256

页数：6

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