Details
| Original language | English |
|---|---|
| Article number | 2100139 |
| Journal | Annalen der Physik |
| Volume | 533 |
| Issue number | 11 |
| Publication status | Published - Nov 2021 |
Abstract
The research aim of this study is the development of a theoretical semiclassical model of the controllable excitation and propagation of surface plasmon polaritons (SPPs) in planar graphene waveguides by the application of external voltage. The model is based on the numerical solution of the SPP's dispersion equation formulated for a system including two coupled graphene sheets with embedded quantum dots. Using the developed model, the different near-field patterns realized in the waveguides depending on the quantum dots' ordering and an external voltage applied independently to each graphene sheet with additional gold electrodes are numerically investigated. The obtained results show that the application of external voltage can locally change the chemical potential of graphene and, thereby, lead to controllable excitation of SPPs in the corresponding graphene waveguide. Furthermore, we revealed that the propagation direction of the excited SPPs is determined by the geometrical configurations of the gold electrodes that provide the required SPP routing. The investigated system offers new opportunities for near-field energy transport and concentration, which can be applied to develop ultra-compact photonic devices.
Keywords
- collective resonance, graphene, quantum dots, strong coupling, surface plasmon polaritons, voltage control
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Annalen der Physik, Vol. 533, No. 11, 2100139, 11.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Controllable Excitation of Surface Plasmon Polaritons in Graphene-Based Semiconductor Quantum Dot Waveguides
AU - Gubin, Mikhail Yu
AU - Prokhorov, Alexei V.
AU - Volkov, Valentyn S.
AU - Evlyukhin, Andrey B.
N1 - Funding Information: This work was supported by the Russian Science Foundation, Grant No. 20‐12‐00343. The numerical algorithm development for the simulation of SPPs in 2D materials with QDs and the analysis of the calculated results was supported by the Ministry of Science and Higher Education of the Russian Federation within the state task VlSU (GB 1187/20).
PY - 2021/11
Y1 - 2021/11
N2 - The research aim of this study is the development of a theoretical semiclassical model of the controllable excitation and propagation of surface plasmon polaritons (SPPs) in planar graphene waveguides by the application of external voltage. The model is based on the numerical solution of the SPP's dispersion equation formulated for a system including two coupled graphene sheets with embedded quantum dots. Using the developed model, the different near-field patterns realized in the waveguides depending on the quantum dots' ordering and an external voltage applied independently to each graphene sheet with additional gold electrodes are numerically investigated. The obtained results show that the application of external voltage can locally change the chemical potential of graphene and, thereby, lead to controllable excitation of SPPs in the corresponding graphene waveguide. Furthermore, we revealed that the propagation direction of the excited SPPs is determined by the geometrical configurations of the gold electrodes that provide the required SPP routing. The investigated system offers new opportunities for near-field energy transport and concentration, which can be applied to develop ultra-compact photonic devices.
AB - The research aim of this study is the development of a theoretical semiclassical model of the controllable excitation and propagation of surface plasmon polaritons (SPPs) in planar graphene waveguides by the application of external voltage. The model is based on the numerical solution of the SPP's dispersion equation formulated for a system including two coupled graphene sheets with embedded quantum dots. Using the developed model, the different near-field patterns realized in the waveguides depending on the quantum dots' ordering and an external voltage applied independently to each graphene sheet with additional gold electrodes are numerically investigated. The obtained results show that the application of external voltage can locally change the chemical potential of graphene and, thereby, lead to controllable excitation of SPPs in the corresponding graphene waveguide. Furthermore, we revealed that the propagation direction of the excited SPPs is determined by the geometrical configurations of the gold electrodes that provide the required SPP routing. The investigated system offers new opportunities for near-field energy transport and concentration, which can be applied to develop ultra-compact photonic devices.
KW - collective resonance
KW - graphene
KW - quantum dots
KW - strong coupling
KW - surface plasmon polaritons
KW - voltage control
UR - http://www.scopus.com/inward/record.url?scp=85115732876&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2110.02717
DO - 10.48550/arXiv.2110.02717
M3 - Article
AN - SCOPUS:85115732876
VL - 533
JO - Annalen der Physik
JF - Annalen der Physik
SN - 0003-3804
IS - 11
M1 - 2100139
ER -