In this talk we first introduce the use of a levitated nanoparticle in vacuum as a nano-optomechanical system with unprecedented performances. Subsequently, we focus on our efforts in cooling its motion towards mechanical ground state at room temperature. In particular, we present an experiment that combines active parametric feedback cooling with passive resolved side band cooling. We first demonstrate systematic transfer of a single trapped nanoparticle from a load lock to the main vacuum chamber hosting a high-finesse optical cavity and report our latest advances in cooling.
Romain Quidant, Pau Mestres, Francesco Ricci, and Raul Rica, "Nano-optomechanics with a levitated nanoparticle
(Conference Presentation)," Proc. SPIE 9922, Optical Trapping and Optical Micromanipulation XIII, 992207 (Presented at SPIE Nanoscience + Engineering: August 28, 2016; Published: 11 November 2016); https://doi.org/10.1117/12.2238899.5161456704001.
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