Measurement of excess noise in the suspension fiber for a gravitational wave detector

An new method for the measurement of the mechanical noise in stressed suspension fibers is proposed and realized. Excess noise above the thermal noise in the fundamental violin mode of thin tungsten wires stressed to ≥ 20% of the break point is observed. Possible mechanisms of the excess noise are d...

Full description

Saved in:
Bibliographic Details
Published in:Physics letters. A 1997-03, Vol.227 (3), p.159-164
Main Authors: Ageev, A.Yu, Bilenko, I.A, Braginsky, V.B, Vyatchanin, S.P
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An new method for the measurement of the mechanical noise in stressed suspension fibers is proposed and realized. Excess noise above the thermal noise in the fundamental violin mode of thin tungsten wires stressed to ≥ 20% of the break point is observed. Possible mechanisms of the excess noise are discussed and tentative recommendations for the design of the suspension of the mirrors in LIGO-type antennae are presented.
ISSN:0375-9601
1873-2429
DOI:10.1016/S0375-9601(97)00040-6