Observation of radiation-pressure effects and back-action cancellation in interferometric measurements

A. Heidmann; T. Caniard; P. Verlot; T. Briant; P.-F. Cohadon

doi:10.1117/12.763304

26 January 2008 Observation of radiation-pressure effects and back-action cancellation in interferometric measurements

A. Heidmann, T. Caniard, P. Verlot, T. Briant, P.-F. Cohadon

Proceedings Volume 6906, Quantum Electronics Metrology; 69060K (2008) https://doi.org/10.1117/12.763304
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

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.

Citation Download Citation

A. Heidmann, T. Caniard, P. Verlot, T. Briant, and P.-F. Cohadon "Observation of radiation-pressure effects and back-action cancellation in interferometric measurements", Proc. SPIE 6906, Quantum Electronics Metrology, 69060K (26 January 2008); https://doi.org/10.1117/12.763304

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