  We study steady-states of semiconductor nanowires subjected to strong
resonant time-periodic drives. The steady-states arise from the balance between
electron-phonon scattering, electron-hole recombination via photo-emission, and
Auger scattering processes. We show that tuning the strength of the driving
field drives a transition between an electron-hole metal (EHM) phase and a
Floquet insulator (FI) phase. We study the critical point controlling this
transition. The EHM-to-FI transition can be observed by monitoring the presence
of peaks in the density-density response function which are associated with the
Fermi momentum of the EHM phase, and are absent in the FI phase. Our results
may help guide future studies towards inducing novel non-equilibrium phases of
matter by periodic driving.
