Resonant transmission of light waves in dielectric heterostructures

Abstract

We investigate the propagation of electromagnetic wave through dielectric heterostructures with transfer-matrix method. It is shown that if a dimerlike positional correlation (DPC) is introduced to the heterostructure, resonant transmission of light waves will definitely take place. The resonant transmissions are characterized by perfect transmission peaks in the photonic band gap, which is demonstrated by the electric-field distribution at corresponding resonant modes. The numerical calculations are in good agreement with the analytical predictions. Furthermore, by applying the SiO2∕Si heterostructure with DPC, resonant modes can appear within the photonic band gap at the telecommunication wavelengths of 1.55 and 1.3μm. This finding is expected to have potential applications in wavelength division multiplexing system.