作者: A. I. Fernández-Domínguez , Esteban Moreno , L. Martín-Moreno , F. J. García-Vidal
DOI: 10.1364/OL.34.002063
关键词: Metamaterial 、 Physics 、 Optics 、 Polariton 、 Wedge (geometry) 、 Transverse plane 、 Surface plasmon polariton 、 Terahertz radiation 、 Plasmon 、 Optoelectronics 、 Surface plasmon
摘要: We propose a metamaterial approach to route terahertz waves that features subwavelength confinement in the transverse plane. The guiding mechanism is based on geometrically induced electromagnetic modes sustained by corrugated metallic wedges, whose characteristics resemble those of wedge plasmon polaritons at telecom and optical frequencies. Additionally, frequency selective focusing slowing down radiation proposed waveguides are presented.