Near-field coupling of a levitated nanoparticle to a photonic crystal cavity

@article{Magrini2018NearfieldCO,
  title={Near-field coupling of a levitated nanoparticle to a photonic crystal cavity},
  author={Lorenzo Magrini and Richard A. Norte and Ralf Riedinger and Igor Marinkovi{\'c} and David Grass and Uro{\vs} Deli{\'c} and Simon Gr{\"o}blacher and Sungkun Hong and Markus Aspelmeyer},
  journal={Optica},
  year={2018}
}
Quantum control of levitated dielectric particles is an emerging subject in quantum optomechanics. A major challenge is to efficiently measure and manipulate the particle’s motion at the Heisenberg uncertainty limit. Here we present a nanophotonic interface suited to address this problem. By optically trapping a 150 nm silica particle and placing it in the near field of a photonic crystal cavity, we achieve tunable single-photon optomechanical coupling of up to g0/2π=9  kHz, three orders of… 

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