title: Ultrawideband air-core plasmonic slow-light waveguide with ultralow high-order dispersion.
abstract: We propose a surface plasmonic waveguide that consists of a metal-dielectric-metal structure and an air-core which are sandwiched in both metals and dielectric material. Numerical results show that the waveguide is able to confine the surface plasmonic modes in a very small air area and achieve slow light with a group velocity of 0.0086 c and cancelled even-orders dispersion over the ultrawideband of 21 THz.
authors.affiliation: State Key Laboratory of Advanced Optical Communication Systems & Networks, Shanghai Jiao Tong University, Shanghai, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Dai
authors.forename: Juan
authors.initials: J
authors.lastname: Xia
authors.forename: Chun
authors.initials: C
authors.lastname: Jiang