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In this paper we report our first experimental results towards the establishment of a novel nanooptomechanical platform consisting of a hybrid, carbon nanotube-based mechanical resonator. We have been able to optically measure and actively control these resonators demonstrating a record force sensitivity at ambient temperature. Finally, we have observed optomechanically-induced dynamical effects and...
In this paper we present our first experimental results towards the exploration of nano-optomechanical detection in the limit of a weak optical coupling. We have been able to measure and actively control SiC nanowires and carbon nanotube-based resonators.
Carbon nanotube mechanical resonators hold an exceptional sensing potential, relying on their extremely low mass. As a consequence, the fundamental thermal forces are transduced into very large motion fluctuations. However, the most basic properties of these fluctuations remain poorly understood. Here we couple the motion of nanotube-based resonators to a free propagating electron beam to demonstrate...
Quantum mechanics sets a lower limit to the precision of continuous position measurements. In an interferometric measurement, the unavoidable backaction results from the radiation pressure force exerted by the light beam on the mirrors: random position fluctuations correlated with the quantum intensity fluctuations of the light field appear as a consequence of this optomechanical coupling. Interestingly,...
In an interferometric measurement, the quantum radiation pressure noise, which is due to quantum intracavity intensity fluctuations, gives rise to mirror displacement fluctuations and sets a limit in the displacement sensitivity. We have designed a table-top experiment to demonstrate this effect and realize various quantum optics experiments with an optomechanical system.
We present our experiments devoted to the observation of quantum radiation-pressure effects and to quantum-noise reduction schemes. We have demonstrated optomechanical correlations between two independent laser beams, and a backaction amplification scheme.
Quantum effects of radiation pressure are expected to limit the sensitivity of second-generation gravitational-wave interferometers. Using a high-finesse optical cavity and a classical intensity noise, radiation-pressure induced correlations between two optical beams sent into the same moving mirror cavity is demonstrated. The intensity fluctuations of the first, high-power, signal beam are imprinted...
Quantum effects of radiation pressure are expected to limit the sensitivity of second-generation gravitational-wave interferometers. Though ubiquitous, such effects are so weak that they haven't been experimentally demonstrated yet. Using a high-finesse optical cavity and a classical intensity noise, we have demonstrated radiation-pressure induced correlations between two optical beams sent into the...
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