High-Sensitivity Optical Monitoring of a Micromechanical Resonator with a Quantum-Limited Optomechanical Sensor

O. Arcizet, P.-F. Cohadon, T. Briant, M. Pinard, A. Heidmann, J.-M. Mackowski, C. Michel, L. Pinard, O. Français, and L. Rousseau
Phys. Rev. Lett. 97, 133601 – Published 26 September 2006

Abstract

We experimentally demonstrate the high-sensitivity optical monitoring of a micromechanical resonator and its cooling by active control. Coating a low-loss mirror upon the resonator, we have built an optomechanical sensor based on a very high-finesse cavity (30 000). We have measured the thermal noise of the resonator with a quantum-limited sensitivity at the 1019m/Hz level, and cooled the resonator down to 5 K by a cold-damping technique. Applications of our setup range from quantum optics experiments to the experimental demonstration of the quantum ground state of a macroscopic mechanical resonator.

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  • Received 10 May 2006

DOI:https://doi.org/10.1103/PhysRevLett.97.133601

©2006 American Physical Society

Authors & Affiliations

O. Arcizet, P.-F. Cohadon, T. Briant, M. Pinard, and A. Heidmann

  • Laboratoire Kastler Brossel, Université Pierre et Marie Curie, Case 74, 4 place Jussieu, F75252 Paris Cedex 05, France

J.-M. Mackowski, C. Michel, and L. Pinard

  • Laboratoire des Matériaux Avancés, Bâtiment VIRGO, Université Claude Bernard, 22 Bd Niels Bohr, F69622 Villeurbanne Cedex, France

O. Français and L. Rousseau

  • Groupe ESIEE, ESYCOM Lab, GIS Micro Nano Technologie, Cité Descartes BP 99, 2 Bd Blaise Pascal, F93162 Noisy le Grand cedex, France

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Issue

Vol. 97, Iss. 13 — 29 September 2006

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