  It is shown, that plasmonic metamaterial nanostructures could be used to
reduce the electron-phonon scattering rate, by providing an alternative, fast
electron-plasmon scattering channel. Since the plasmon-phonon and
plasmon-photon scattering processes are relatively slow, this provides a
mechanism for a hot-electron plasmonic protection against the phonon emission.
The stored/protected energy can be returned to the single particle channel by
processes similar to the Rabi oscillations, plasmon resonance energy transfer
(PERT), or formation of plasmarons. This effect could be used to control phonon
scattering in various electron systems, such as solar cells or high
Tc-superconductors.
