Digital Designing and Parameter Optimization for Plasmonic Circuits

Shesterikov, A. V.; Leksin, A. Yu.; Прохорова, Т. В.; Voronova, N. M.; Prokhorov, A. V.

doi:10.3103/s106287382003020x

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…Suitable semiconductor QDs must have a very small band gap for emitting such wavelengths on an interband transition or large values of scattering cross-sections on intraband transitions for the first levels of the conduction band. [26] In this sense, good candidates for SPP generation on planar or multilayer graphene sheets are HgTe QDs with bright photoluminescence in MWIR emitted by both intra-and interband transitions. [27,28] Other candidates are less toxic and more stable Ag 2 Se QDs, [29,30] which produce power photoluminescence at a wavelength near 5 μm.…”

Section: Introductionmentioning

confidence: 99%

Controllable Excitation of Surface Plasmon Polaritons in Graphene‐Based Semiconductor Quantum Dot Waveguides

et al. 2021

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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.

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Section: Introductionmentioning

confidence: 99%

Controllable Excitation of Surface Plasmon Polaritons in Graphene‐Based Semiconductor Quantum Dot Waveguides

et al. 2021

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“…However, for efficient excitation of plasmon polaritons in graphene (under condition ω < 2µ c , where ω is the photon energy of the pump field), QD photoluminescence in the mid-wave infrared (MWIR, 3 − −6 µm) range is required, which significantly reduces the choice of semiconductors for their fabrication. Suitable semiconductor QDs must have a very small band gap for emitting such wavelengths on an interband transition or large values of scattering cross-sections on intraband transitions for the first levels of the conduction band [22]. In this sense, good candidates for SPP generation on planar or multilayer graphene sheets are HgTe QDs with bright photoluminescence in MWIR emitted by both intra-and interband transitions [23,24].…”

Section: Introductionmentioning

confidence: 99%

Controllable Excitation of Surface Plasmon Polaritons in Graphene-Based Semiconductor Quantum Dot Waveguides

Gubin,

Prokhorov,

Volkov

et al. 2021

Preprint

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In the present paper, the collective near-field effects in a two-graphene sheets plasmonic waveguide loaded with an array of Ag 2 Se quantum dots excited by external radiation are theoretically studied. This research aims to develop a theoretical approach to realizing controllable excitation and the propagation of surface plasmon polaritons (SPPs) in planar graphene waveguides. The proposed model is based on the semiclassical description that implies the dispersion equation's solution for SPPs excited in two coupled graphene sheets and the embedded quantum dots' energy spectra analysis. Using the finite difference time domain method, 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 research shows that applying external voltages allows locally changing the graphene chemical potential, thereby leading to controllable excitation of SPPs in the space between the electrodes. Under these conditions, the propagation direction of the excited SPPs is determined by the geometrical configurations of the gold electrodes providing 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.

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Switching Effects in Plasmonic Circuits Based on Thin Metal Films and Nanostructures with High Photoconductivity

Gubin

Dzedolik²,

Прохорова³

et al. 2022

Opt. Spectrosc.

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Digital Designing and Parameter Optimization for Plasmonic Circuits

Cited by 3 publications

References 12 publications

Controllable Excitation of Surface Plasmon Polaritons in Graphene‐Based Semiconductor Quantum Dot Waveguides

Controllable Excitation of Surface Plasmon Polaritons in Graphene‐Based Semiconductor Quantum Dot Waveguides

Controllable Excitation of Surface Plasmon Polaritons in Graphene-Based Semiconductor Quantum Dot Waveguides

Switching Effects in Plasmonic Circuits Based on Thin Metal Films and Nanostructures with High Photoconductivity

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