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Proceedings Paper

Quantum optics with a mechanical microresonator
Author(s): C. Molinelli; O. Arcizet; T. Briant; P.-F. Cohadon; M. Pinard; A. Heidmann
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Paper Abstract

We present an experiment where the motion of a silicon micro-mechanical resonator is optically monitored with a very high-finesse optical cavity, down to a quantum-limited sensitivity at the 10-19m/√Hz level. We have observed the thermal noise of the resonator at room temperature over a wide frequency range, and fully characterized its optomechanical behaviour, in good agreement with theoretical models. We have also demonstrated a direct effect of intracavity radiation pressure upon the dynamics of the micro-resonator in a detuned high-finesse optical cavity: depending on the sign of the detuning, we have obtained both cooling and heating, with an effective temperature ranging from 10 to 2000 K. We have also observed a related radiation-pressure induced instability of the resonator. This experiment opens the way to radiation pressure-driven quantum optics effects, with silicon resonators offering high resonance frequencies, low effective masses, and a high displacement sensitivity. Possible experiments include QND measurement of light intensity or optomechanical squeezing of the optical field, as well as the optical observation of the quantum ground state of a macroscopic oscillator.

Paper Details

Date Published: 13 June 2007
PDF: 8 pages
Proc. SPIE 6603, Noise and Fluctuations in Photonics, Quantum Optics, and Communications, 66032D (13 June 2007); doi: 10.1117/12.724647
Show Author Affiliations
C. Molinelli, Lab. Kastler Brossel, UPMC, ENS, CNRS (France)
O. Arcizet, Lab. Kastler Brossel, UPMC, ENS, CNRS (France)
T. Briant, Lab. Kastler Brossel, UPMC, ENS, CNRS (France)
P.-F. Cohadon, Lab. Kastler Brossel, UPMC, ENS, CNRS (France)
M. Pinard, Lab. Kastler Brossel, UPMC, ENS, CNRS (France)
A. Heidmann, Lab. Kastler Brossel, UPMC, ENS, CNRS (France)


Published in SPIE Proceedings Vol. 6603:
Noise and Fluctuations in Photonics, Quantum Optics, and Communications
Leon Cohen, Editor(s)

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