Coupling between one-dimensional excitons and two-dimensional photons: Quantum wires in a microcavity

Maxwell equations are solved for the light incident on the microcavity with an embedded periodical grating of quantum wires, taking into account the nonlocal excitonic contributions to the dielectric polarization. The dispersion of exciton polaritons created due to the coupling of one-dimensional excitons and two-dimensional photon modes is obtained. The backscattering of light due to its resonant diffraction at the grating of quantum wires is found to result in the four-mode polaritonic spectrum, while numerically calculated spectra of light reflection, absorption, and diffraction scattering show from two to four resonant features. © 1996 The American Physical Society.