Coherent interplay between surface acoustic waves and coupled mechanical resonators: transition from plasmon-like to surface mediated coupling

Abstract

Manipulation of mechanical motion at the micro-scale has been attracting continuous attention, leading to the successful implementation of various strategies with potential impact on classical and quantum information processing. We here propose an approach based on the interplay between a pair of localized mechanical resonators and travelling surface acoustic waves (SAW). We demonstrate the existence of a two-sided interaction, allowing to use SAW to trigger and control the resonator oscillation, and to manipulate the elastic energy distribution on the substrate through resonator coupling. Observation of the vectorial structure of the resonator motion reveals the existence of two coupling regimes, a dipole-dipole-like interaction at small separation distance versus a surface-mediated mechanical coupling at larger separation. These results illustrate the potential of this platform for coherent control of mechanical vibration at a resonator level, and reciprocally for manipulating SAW propagation using sub-wavelength elements.

arXiv comment7 pages, 5 figures

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Cited by in corpus (8)

• Lamb's problem for a half-space coupled to a generic distribution of oscillators at the surface
• On-chip generation and dynamic piezo-optomechanical rotation of single photons
• A multiple scattering formulation for finite-size flexural metasurfaces
• Quasinormal mode representation of radiating resonators in open phononic systems
• Realization of programmable nanomechanical lattice with both nearest-neighboring and next-nearest-neighboring couplings
• Transduction of single nanomechanical pillar resonators by scattering of surface acoustic waves
• Nonlinear effects in locally-resonant nanostrip phononic metasurface at GHz frequencies
• The point scatterer approximation for wave dynamics