Nano plasmon polariton modes of a wedge cross section metal waveguide

Eyal Feigenbaum, Meir Orenstein
2006 Optics Express  
Optical plasmon-polariton modes confined in both transverse dimensions to significantly less than a wavelength are exhibited in open waveguides structured as sharp metal wedges. The analysis reveals two distinctive modes corresponding to a localized mode on the wedge point and surface mode propagation on the abruptly bent interface. These predictions are accompanied by unique field distributions and dispersion characteristics.
doi:10.1364/oe.14.008779 pmid:19529260 fatcat:75l5kk75frcs3ovvx6ny5lxv3q