Surface plasmon polaritons enable light concentration within subwavelength regions, and here we demonstrate efficient and compact graphene-plasmonic modulators fully integrated in the silicon-on-insulator platform.
Thin structured periodic metallic corrugations on both sides of low-loss thin polythene slab are proposed to efficiently guide terahertz (THz) wave based on the surface plasmon polaritons (SPPs). THz time domain spectrometer was used to measure the transmission characteristic. Long-lasting Fabry-Perot resonance modes are demonstrated due to the interferences of the multiple reflected waves.
Imaging of surface plasmon polaritons in low-loss highly metallic titanium nitride thin films in visible and infrared regimes