Direct Observation of Broadband Coating Thermal Noise in a Suspended Interferometer

Details Direct Observation of Broadband Coating Thermal Noise in a Suspended Interferometer Direct Observation of Broadband Coating Thermal Noise in a Suspended Interferometer

2004-01-09

arxiv.org/abs/gr-qc/0401034v2

Phys.Lett. A328 (2004) 1-5

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Final version synchronized with publication in Phys. Lett. A

Scientific paper

10.1016/j.physleta.2004.05.052

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.

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