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.
- Publication:
-
Optics Express
- Pub Date:
- July 2013
- DOI:
- 10.1364/OE.21.015490
- arXiv:
- arXiv:1302.0770
- Bibcode:
- 2013OExpr..2115490G
- Keywords:
-
- Condensed Matter - Mesoscale and Nanoscale Physics;
- Physics - Optics
- E-Print:
- 14 pages, 20 figures