Comparative study of air and glass-modified graphene rectangular waveguide for surface wave propagation

Zulqarnain, Muhammad; Mustaqeem, Mujahid; Saleh, Tawfik A.; Akram, Muhammad Naveed; Naikoo, Gowhar A.; Lateef, Nimra

doi:10.1007/s10854-022-08270-1

Cited by 7 publications

(3 citation statements)

References 25 publications

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“…The research employs boundary conditions to analyze the characteristics of surface waves and examines the impacts of chemical potential (CP) on dispersion curves. The results are logically presented through graphical representations of the improved graphene rectangular waveguide [ 39 ]. Additionally, Liu et al presented a polarization-insensitive Gr waveguide with bilayer graphene [ 40 ].…”

Section: Introductionmentioning

confidence: 99%

A high figure of merit of phonon-polariton waveguide modes with hbn/SiO2/graphene /hBN ribs waveguide in mid-infrared range

Sheng,

Yue,

Zhao

et al. 2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

A high figure of merit of phonon-polariton waveguide modes with hbn/SiO2/graphene /hBN ribs waveguide in mid-infrared range

Sheng,

Yue,

Zhao

et al. 2024

Heliyon

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“…These waves with sub-wavelength confinement can appear at the interface of metal and insulator and they are known as surface plasmon polaritons at visible wavelengths [2]. Because of the high concentration of fields at the interface of two structures with different electromagnetic properties, these waves are very appealing for transmission and sensing applications [3][4][5][6][7][8][9][10][11]. In general, these waves can be found throughout a wide electromagnetic spectrum.…”

Section: Introductionmentioning

confidence: 99%

Quasi-Line Waves in Self-Inductive Impedance Surfaces

Ahmadi¹,

Pasdari-Kia²,

Razmjooei³

et al. 2023

Preprint

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<p>Line waves are distinct modes that arise along a line that connects two-dimensional impedance surfaces with a dual electromagnetic response. In general, line waves can be implemented using complementary impedances or impedances with a gain-loss effect. Whereas non-complementary dual surfaces support a quasi-line mode. we propose a structure in which non-dual structures with purely inductive impedances are used to drive the quasi-line mode. We investigate the implementation of quasi-line modes using multilayer graphenes. This mode has a wide bandwidth in the terahertz range and a significant propagation length. The proposed structure guides one-way modes in which the fields are highly concentrated around the edges of two inductive impedance structures. Furthermore, incorporating graphene into the proposed waveguide makes it possible to control its bandwidth and transmission characteristics.</p>

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“…In 2022, Tu et al analyzed hybrid plasmon-phonon-polariton modes in hBN/graphene/hBN stacks for mid-infrared waveguiding [35]. Zulqarnain, M et al designed an air and glass-modified graphene rectangular waveguide for surface wave propagation [36]. Additionally, Liu et al proposed a polarization-insensitive graphene modulator based on hybrid plasmonic waveguide [37].…”

Section: Introductionmentioning

confidence: 99%

A high figure of merit of phonon-polariton waveguide modes with hBN/SiO 2 /graphene/hBN ribs waveguide in THz range

刘

Zhao

JIN

et al. 2023

Preprint

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The utilization of THz waveguides has enabled a variety of applications in integrated optics and communications. To effectively control THz signals on photonic chips, it is essential to design a waveguide that offers both a high figure of merit (FOM) and low loss. In this paper, we propose a THz waveguide composed of a dielectric rib and a graphene layer sandwiched between two hexagonal boron nitride (hBN) ribs on a gold layer. Numerical simulations demonstrate the existence of two type guided modes of the proposed waveguide in the second reststrahlen band (1360.0cm− 1 < ω < 1609.8cm− 1) of hBN. These modes are formed by coupling the hyperbolic phonon polariton (HPhP) of two hBN rib in the middle dielectric rib and are then modulated by a graphene layer. Interestingly, we found that four waveguide transmission parameters, including an effective length, a figure of merit, a device length and a propagation loss of the guided modes, vary with operation frequency and gate voltage. By altering geometry parameters and dielectric permittivity, the modal properties were analyzed. Simulation results demonstrate that a high FOM of 4.0×107 is achieved by optimizing waveguide size parameters. The proposed waveguide offers a promising approach for designing a tunable THz waveguide on photonic chips, which can be extended to other hyperbolic materials and 2D materials such as MnO3, silicone and germanene.

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Comparative study of air and glass-modified graphene rectangular waveguide for surface wave propagation

Cited by 7 publications

References 25 publications

A high figure of merit of phonon-polariton waveguide modes with hbn/SiO2/graphene /hBN ribs waveguide in mid-infrared range

A high figure of merit of phonon-polariton waveguide modes with hbn/SiO2/graphene /hBN ribs waveguide in mid-infrared range

Quasi-Line Waves in Self-Inductive Impedance Surfaces

A high figure of merit of phonon-polariton waveguide modes with hBN/SiO 2 /graphene/hBN ribs waveguide in THz range

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