title: Graphene-based plasmonic switches at near infrared frequencies.
abstract: The concept, analysis, and design of series switches for graphene-strip plasmonic waveguides at near infrared frequencies are presented. Switching is achieved by using graphene's field effect to selectively enable or forbid propagation on a section of the graphene strip waveguide, thereby allowing good transmission or high isolation, respectively. The electromagnetic modeling of the proposed structure is performed using full-wave simulations and a transmission line model combined with a matrix-transfer approach, which takes into account the characteristics of the plasmons supported by the different graphene-strip waveguide sections of the device. The performance of the switch is evaluated versus different parameters of the structure, including surrounding dielectric media, electrostatic gating and waveguide dimensions.
authors.affiliation: Adaptive MicroNanoWave Systems, LEMA/Nanolab École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
authors.forename: J S
authors.initials: JS
authors.lastname: Gómez-Díaz
authors.forename: J
authors.initials: J
authors.lastname: Perruisseau-Carrier