Inspec keywords: finite difference time-domain analysis; polaritons; terahertz waves; surface plasmons; electromagnetic wave propagation

Other keywords: surface plasmon polariton propagation properties; spoof SPP; split terahertz surface waves; metal disc-shaped devices; microwave region prototype; metal-dielectric interface; THz frequency; frequency-dependent FDTD formulation; dispersion material; fan-shaped regions; disc-type splitter; electromagnetic wave propagation; grating regions

Subjects: Polaritons; Collective excitations (surface states)