Asymmetric Cavity Mode Engineering in a Single Plasmonic Nanowire

Plasmon mode engineering enables the ability to manipulate the highly localized electromagnetic fields at the deep-subwavelength scale. Here, without introducing geometrical asymmetry, we propose a scheme to generate and control the asymmetric plasmon mode in a single nanowire cavity by the interference of cavity modes with opposite parities. Through a rigorous theoretical derivation and further v...