1. Nanophotonic graphene-based racetrack-resonator add/drop filter
- Author
-
A. Wirth L., M.G. da Silva, D.M.C. Neves, and A.S.B. Sombra
- Subjects
Materials science ,business.industry ,Terahertz radiation ,Graphene ,Nanophotonics ,02 engineering and technology ,Filter (signal processing) ,021001 nanoscience & nanotechnology ,01 natural sciences ,Atomic and Molecular Physics, and Optics ,Electronic, Optical and Magnetic Materials ,law.invention ,Resonator ,law ,0103 physical sciences ,Optoelectronics ,Power dividers and directional couplers ,Electrical and Electronic Engineering ,Physical and Theoretical Chemistry ,010306 general physics ,0210 nano-technology ,business ,Waveguide ,Graphene nanoribbons - Abstract
We are presenting and analyzing a graphene-based nanophotonic device to operate as a resonator-add/drop filter, whose control is obtained by varying the graphene chemical potential. That device consists of graphene-based waveguides, two directional couplers and a racetrack resonator with 90° bends. Since the graphene chemical potential provides the achievement of the necessary parameters, the resonance and filtering of the signals are obtained by applying the correct value of the graphene chemical potential in the graphene nanoribbons. The results of this study should help in the development of new graphene-based nanophotonic devices operating in the terahertz and infrared range (including in the C-band of the International Telecommunication Union – ITU), for use in future communications networks.
- Published
- 2016