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Optomechanical characterization of acoustic modes in a mirror

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Type
Published Article
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Submission Date
Identifiers
DOI: 10.1103/PhysRevA.68.033823
arXiv ID: quant-ph/0305122
Source
arXiv
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Unknown
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Abstract

We present an experimental study of the internal mechanical vibration modes of a mirror. We determine the frequency repartition of acoustic resonances via a spectral analysis of the Brownian motion of the mirror, and the spatial profile of the acoustic modes by monitoring their mechanical response to a resonant radiation pressure force swept across the mirror surface. We have applied this technique to mirrors with cylindrical and plano-convex geometries, and compared the experimental results to theoretical predictions. We have in particular observed the gaussian modes predicted for plano-convex mirrors.

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