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Proceedings Paper

Observation of radiation-pressure effects and back-action cancellation in interferometric measurements
Author(s): A. Heidmann; T. Caniard; P. Verlot; T. Briant; P.-F. Cohadon
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Paper Abstract

Radiation pressure exerted by light in interferometric measurements is responsible for displacements of mirrors which appear as an additional back-action noise and limit the sensitivity of the measurement. We experimentally study these effects by monitoring in a very highfinesse optical cavity the displacements of a mirror with a sensitivity at the 10-20 m/√Hz level. This unique sensitivity is a step towards the first observation of the fundamental quantum effects of radiation pressure and the resulting standard quantum limit in interferometric measurements. Our experiment may become a powerful facility to test quantum noise reduction schemes, and we already report the first experimental demonstration of a back-action noise cancellation. Using a classical radiation-pressure noise to mimic the quantum noise of light, we have observed a drastic improvement of sensitivity both in position and force measurements.

Paper Details

Date Published: 26 January 2008
PDF: 8 pages
Proc. SPIE 6906, Quantum Electronics Metrology, 69060K (26 January 2008); doi: 10.1117/12.763304
Show Author Affiliations
A. Heidmann, Lab. Kastler Brossel, UPMC, ENS, CNRS (France)
T. Caniard, Lab. Kastler Brossel, UPMC, ENS, CNRS (France)
P. Verlot, 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)

Published in SPIE Proceedings Vol. 6906:
Quantum Electronics Metrology
Alan E. Craig; Selim M. Shahriar, Editor(s)

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