  Localized surface plasmons are confined collective oscillations of electrons
in metallic nanoparticles. When driven by light, the optical response is
dictated by geometrical parameters and the dielectric environment and plasmons
are therefore extremely important for sensing applications. Plasmons in
graphene disks have the additional benefit to be highly tunable via electrical
stimulation. Mechanical vibrations create structural deformations in ways where
the excitation of localized surface plasmons can be strongly modulated. We show
that the spectral shift in such a scenario is determined by a complex interplay
between the symmetry and shape of the modal vibrations and the plasmonic mode
pattern. Tuning confined modes of light in graphene via acoustic excitations,
paves new avenues in shaping the sensitivity of plasmonic detectors, and in the
enhancement of the interaction with optical emitters, such as molecules, for
future nanophotonic devices.
