  We have investigated the phonon dynamics of a single-molecule embedded in a
mechanical resonator made of an organic crystal. The whole system is placed in
an optical resonator within the bad cavity limit. We have found that the
optical control of the molecular population affects the phonon dynamics.
Long-lived phonons are obtained when slowing-down the decay dynamics of the
molecule via modulation of the transition frequency. The discussed results are
also valid for optomechanical setups based on other types of two-level emitters
and mechanical resonators.
