  We propose a self-consistent many-body theory for coupling the ultrafast
dipole-transition and carrier-plasma dynamics in a linear array of quantum
wires with the scattering and absorption of ultrashort laser pulses. The
quantum-wire non-thermal carrier occupations are further driven by an applied
DC electric field along the wires in the presence of resistive forces from
intrinsic phonon and Coulomb scattering of photo-excited carriers. The same
strong DC field greatly modifies the non-equilibrium properties of the induced
electron-hole plasma coupled to the propagating light pulse, while the induced
longitudinal polarization fields of each wire significantly alters the nonlocal
optical response from neighboring wires. Here, we clarify several fundamental
physics issues in this laser-coupled quantum wire system, including laser
influence on local transient photo-currents, photoluminescence spectra, and the
effect of nonlinear transport in a micro-scale system on laser pulse
propagation. Meanwhile, we also anticipate some applications from this work,
such as specifying the best combination of pulse sequence through a
quantum-wire array to generate a desired THz spectrum and applying ultra-fast
optical modulations to nonlinear carrier transport in nanowires.
