Polariton electric fields and dispersion relations of some important complex-basis superlattices have been derived by means of electromagnetic theory and the Bloch's theorem. The spatial distribution of the polariton electric fields shows an interesting physical picture: the polaritons are mainly bulk modes as the wavenumber k is small and become typical interface modes with very strong peak intensities as k increases.
机构:
Technical University of Lodz, Institute of Electronics, ul. Stefanowskiego 18/22, 90-924 Lodz, PolandTechnical University of Lodz, Institute of Electronics, ul. Stefanowskiego 18/22, 90-924 Lodz, Poland