Piezo-orbital backaction force in a rare-earth doped crystal

Abstract

We investigate a system composed of an ensemble of room temperature rare-earth ions embedded in a bulk crystal, intrinsically coupled to internal strain via their sensitivity to the surrounding crystal field. We evidence the generation of a mechanical response under resonant atomic excitation. We find this motion to be the sum of two fundamental, resonant optomechanical backaction processes: a conservative, piezo-orbital mechanism, resulting from the modification of the crystal field associated with the promotion of the ions to their excited state, and a dissipative, non-radiative photothermal process related to the phonons generated throughout the atomic population relaxation. Our work opens new research avenues in hybrid optomechanics, and highlights new interactions that may be key for understanding the dephasing dynamics of ultra-coherent rare-earth ions.

Main text: 6 pages, 4 figures. Supplementary Material: 7 pages, 6 figures

References in corpus (6)

• Resolved sidebands in a strain-coupled hybrid spin-oscillator system
• Experimental quantum state tomography of a solid state qubit
• Directional Detection of Dark Matter using Spectroscopy of Crystal Defects
• Inducing micromechanical motion by optical excitation of a single quantum dot
• Strain-gradient mapping of semiconductor quantum dots
• Strain-mediated ion-ion interaction in rare-earth-doped solids

Cited by in corpus (2)

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