  Integrated electro-optical switches are essential as one of the fundamental
elements in the development of modern optoelectronics. As an architecture for
photonic systems, exciton polaritons, that are hybrid bosonic quasiparticles
that possess unique properties derived from both excitons and photons, have
shown much promise. For this system, we demonstrate a significant improvement
of emitted intensity and condensation threshold by applying an electric field
to a microcavity filled with an organic microbelt. Our theoretical
investigations indicate that the electric field makes the excitons dipolar and
induces an enhancement of the exciton-polariton interaction and of the
polariton lifetime. Based on these electric field induced changes, a
sub-nanosecond electrical-field-enhanced polariton condensate switch is
realized at room temperature, providing the basis for developing an on-chip
integrated photonic device in the strong light-matter coupling regime.
