Rare-earth-mediated opto-mechanical system in the reversed dissipation regime

Abstract

Strain-mediated interaction between phonons and telecom photons is demonstrated using excited states of erbium ions embedded in a mechanical resonator. Owing to the extremely long-lived nature of rare-earth ions, the dissipation rate of the optical resonance falls below that of the mechanical one. Thus, a reversed dissipation regime is achieved in the optical frequency region. We experimentally demonstrate an opto-mechanical coupling rate 21.7 Hz, and numerically reveal that the interaction causes stimulated excitation of erbium ions. Numerical analyses further indicate the possibility of g_0 exceeding the dissipation rates of erbium and mechanical systems, thereby leading to single-photon strong coupling. This strain-mediated interaction moreover involves the spin degree of freedom, and has a potential to be extended to highly-coherent opto-electro-mechanical hybrid systems in the reversed dissipation regime.

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• Optomechanical interface between telecom photons and spin quantum memory
• Parity-dependent unidirectional and chiral photon transfer in reversed-dissipation cavity optomechanics
• Observation of Acoustically Induced Dressed States of Rare-Earth Ions
• Anomalous sub-kelvin thermal frequency shifts of ultra narrow-linewidth solid state emitters
• First-order thermal insensitivity of the frequency of a narrow spectral hole in a crystal
• Piezo-orbital backaction force in a rare-earth doped crystal
• Temperature-dependent mechanical losses of Eu${}^{3+}$:Y${}_2$SiO${}_5$ for spectral hole burning laser stabilization
• Thermal-noise Limits to the Frequency Stability of Burned Spectral Holes
• Near-resonant nuclear spin detection with megahertz mechanical resonators
• Coherent response of inhomogeneously broadened and spatially localized emitter ensembles in waveguide QED
• From Heat Capacity to Coherence in Ultra-Narrow-Linewidth Solid-State Optical Emitters at Sub-Kelvin Temperatures