Abstract
The dispersions and radiative decay rates of polaritons in self-assembling quantum wires have been investigated. This study is based on the analytical solution of the Maxwell's equations in a system presenting a lateral modulated dielectric constant and described by nonlocal periodically susceptibilities. With this generalized theoretical method, we can obtain the polariton energies and their radiative decay rates for any angle of incidence. The electromagnetic field confinement along two direction induces guided and diffracted modes which couple to one-dimensional excitonic modes. These interactions enhance strongly the polariton behavior in both S and P polarisations. In addition we have analysed the polariton radiative decay rates where the superlattice of quantum wires SQWW is considered as a resonator.