Coupling between the plasmonic and photonic resonance modes in wave-guided metallic photonic crystals

摘要

A simple analytical model was formulated to describe the coupling between the broadband particle plasmon resonance (PPR) and the narrowband waveguide resonance mode (WRM) in wave-guided metallic photonic crystals (MPCs). The PPR and the WRM are processed independently to enable direct examination of their interaction. The enhanced transmission resulting from the PPR-WRM coupling in wave-guided MPCs can be simply interpreted as the destructive interference between directly transmitted light with lower intensity and the diffraction of the waveguide propagation mode with higher intensity.