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Dynamical backaction in an ultrahigh-finesse fiber-based microcavity

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2021

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Physical Review Applied. American Physical Society (APS). 2021, 16(1), 014013. eISSN 2331-7019. Available under: doi: 10.1103/PhysRevApplied.16.014013

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The use of low-dimensional objects in the field of cavity optomechanics is limited by their low scattering cross section compared with the size of the optical cavity mode. Fiber-based Fabry-Perot microcavities can feature tiny mode cross sections and still maintain a high finesse, boosting the light-matter interaction and thus enabling the sensitive detection of the displacement of minute objects. Here we present such an ultrasensitive microcavity setup with the highest finesse reported so far in loaded fiber cavities, F=195000. We are able to position-tune the static optomechanical coupling to a silicon nitride membrane stripe, reaching frequency pull parameters of up to ∣∣G/2π∣=1GHznm−1. We also demonstrate radiation pressure backaction in the regime of an ultrahigh finesse up to F=165000.

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ISO 690ROCHAU, Felix, Irene SÁNCHEZ ARRIBAS, Alexandre BRIEUSSEL, Sebastian STAPFNER, David HUNGER, Eva M. WEIG, 2021. Dynamical backaction in an ultrahigh-finesse fiber-based microcavity. In: Physical Review Applied. American Physical Society (APS). 2021, 16(1), 014013. eISSN 2331-7019. Available under: doi: 10.1103/PhysRevApplied.16.014013
BibTex
@article{Rochau2021-07-19T09:19:58ZDynam-54569,
  year={2021},
  doi={10.1103/PhysRevApplied.16.014013},
  title={Dynamical backaction in an ultrahigh-finesse fiber-based microcavity},
  number={1},
  volume={16},
  journal={Physical Review Applied},
  author={Rochau, Felix and Sánchez Arribas, Irene and Brieussel, Alexandre and Stapfner, Sebastian and Hunger, David and Weig, Eva M.},
  note={Article Number: 014013}
}
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