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

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Wide band measurement of mechanical thermal noise using a laser interferometer

1999

6 pages

Published in:

Phys.Lett.A 263 (1999) 21-26,
Phys.Lett.A 264 (1999) 251-256

DOI:

10.1016/S0375-9601(99)00636-2

View in:

ADS Abstract Service

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Abstract: (Elsevier)

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.

01.55.+b
04.80.Nn
05.40.+j
95.55.Ym
Gravitational wave detector
Fluctuation–dissipation theorem
Thermal noise
gravitational radiation detector
laser: interferometer
temperature

References(17)

Figures(0)

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