Published November 2, 2016 | Version v1
Journal article Open

Dispersive coupling between light and a rare-earth-ion–doped mechanical resonator

  • 1. Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, 8000 Aarhus C, Denmark
  • 2. LNE-SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Univ. Paris 06, 61 Avenue de l'Observatoire, 75014 Paris, France
  • 3. Univ. Grenoble Alpes, CNRS, Inst. NEEL, F-38000 Grenoble, France and Institut Universitaire de France, 103 Boulevard Saint-Michel, 75005 Paris, France


By spectrally hole burning an inhomogeneously broadened ensemble of ions while applying a controlled
perturbation, one can obtain spectral holes that are functionalized for maximum sensitivity to different
perturbations. We propose to use such hole-burned structures for the dispersive optical interaction with
rare-earth-ion dopants whose frequencies are sensitive to crystal strain due to the bending motion of a crystal
cantilever. A quantitative analysis shows that good optical sensitivity to the bending motion is obtained if a
magnetic-field gradient is applied across the crystal during hole burning and that the resulting optomechanical
coupling strength is sufficient for observing quantum features such as zero-point vibrations.



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NanOQTech – Nanoscale Systems for Optical Quantum Technologies 712721
European Commission