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- Title
Design of Graphene Hybrid Dielectric Plasmonic Nano-waveguide with Ultralow Propagation Loss.
- Authors
Jafari, Mohammad Reza; Asadi, Akbar; Shahmansouri, Mehran
- Abstract
A graphene hybrid dielectric plasmonic nano-waveguide (GHDPNW) has been proposed to attain excellent propagating efficiency in the mid-infrared (MIR) spectra. Here, the characteristics of the proposed waveguide on the frequency of incident wave, Fermi energy of graphene, the width and thickness of the low-index dielectric and high-index layers are investigated via the technique of finite element. The results illustrate that the proposed waveguide has a normalized mode area of ∼ 10 - 7 , a figure-of-merit over 3000, and a propagation length over 34 μ m by tuning the thickness of the dielectric layers and the graphene Fermi energy, which is a smaller normalized mode area, higher figure-of-merit, and a longer propagation length compared to similar waveguides. Furthermore, investigation of crosstalk between the neighbor geometries demonstrated that the designed waveguide displays a small crosstalk. Owing to these excellent results, the designed structure could be used for nanophotonic integrated circuits.
- Subjects
GRAPHENE; PLASMONICS; DIELECTRIC waveguides; DIELECTRICS; FERMI energy; INTEGRATED circuits
- Publication
Journal of Electronic Materials, 2023, Vol 52, Issue 10, p6483
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-023-10640-2