Title
Near-field coupling of a levitated nanoparticle to a photonic crystal cavity
Author
Richard A. Norte
Kavli Institute of Nanoscience, Department of Quantum Nanoscience, Delft University of Technology
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Abstract
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 magnitude larger than previously reported for levitated cavity optomechanical systems. Efficient collection and guiding of light through the nanophotonic structure results in a per-photon displacement sensitivity that is increased by two orders of magnitude compared to conventional far-field detection. The demonstrated performance shows a promising route for room temperature quantum optomechanics.
Object type
Language
English [eng]
Persistent identifier
https://phaidra.univie.ac.at/o:1070222
Appeared in
Title
Optica
Volume
5
Issue
12
From page
1597
Publisher
The Optical Society
Date issued
2018
Access rights
Rights statement
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