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We explore the vectorial optomechanical interaction between a nanowire and a focused beam of light. The nanowire is sensitive to the topological variations of the focused laser force field which dramatically modify the phenomenology of the dynamical backaction. The non-conservative topology of the optomechanical interaction is responsible for a novel canonical signature of strong coupling between...
We explore the vectorial optomechanical interaction between a nanowire and a focused beam of light. The nanowire is sensitive to the topological variations of the focused laser force field which dramatically modify the phenomenology of the dynamical backaction.
Recent experiments have confirmed the validity of quantum theory for macroscopic mechanical systems with masses up to several picograms [1,2]. The experimental investigation of macroscopic decoherence mechanisms or possible modifications of quantum mechanics would however strongly benefit from using even larger quantum objects [3]. We have designed an optomechanical system whose effective mass is...
Optomechanical coupling between a moving mirror and the quantum fluctuations of the laser which is reflecting on it first appeared in the eighties in the context of interferometric gravitational-wave detection. Since then, several schemes involving a cavity with a movable mirror subject to radiation pressure have been proposed to detect the quantum position fluctuations of a mechanical resonator.
Most of the optomechanical studies [1] have so far been restricted to objects with sizes much larger than the optical wavelength. Sensitive nano-optomechanical coupling has also been evidenced, but with wavelength size objects which were incorporated into advanced optical microcavity designs. We report a new of ultra-sensitive nano-optomechanical system that breaks these barriers, and enables unprecedentedly...
We investigate the nano-optomechanical properties between a nanowire and a focused beam of light. Based on such a system, we report unprecedently sensitive vectorial detection of nanomechanical motion using SiC nanowires and Carbon nanotubes.
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.
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