Algorithm 934

Erricolo, Danilo; Carluccio, Giuseppe

doi:10.1145/2513109.2513117

Cited by 18 publications

(2 citation statements)

References 36 publications

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“…Equation (13) is based on Mathieu functions and describes EM fields propagation along the elliptical waveguide 25 – 27 To obtain the complex propagation coefficient at different frequencies, we numerically solve the transcendental dispersion [Eq. (13)].…”

Section: Modelmentioning

confidence: 99%

Analysis of hollow elliptical waveguide with metamaterial cladding

Ghasemzadeh,

Lotfi,

Kheradmand

et al. 2024

Opt. Eng.

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We characterize the behavior of modes propagating along a hollow elliptical waveguide with lossy metamaterial cladding. The proposed metamaterial-dielectric elliptical waveguide supports surface-plasmon polariton (SPP) and hybrid ordinary-SPP modes in the operating frequency ranges. Previous studies on metamaterial-dielectric elliptical waveguides either ignore the effect of energy loss on the modes characteristics or employ approximate approaches to characterize modes behavior. Although some previous works include energy loss, they do not specify SPPs propagation versus hybrid-ordinary SPPs propagation in the operating frequency ranges. Here, we consider energy loss in the waveguide to eliminate errors resulting from neglecting the loss. Our waveguide structure facilitates SPP and hybrid ordinary-SPP modes propagation along the waveguide, has better energy confinement, and higher propagation length than previous results in the literature. In the elliptical waveguide, the propagation coefficient changes by changing the waveguide eccentricity; therefore, the elliptical nature of the studied waveguide facilitates its applications in pressure optical sensors.

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Section: Modelmentioning

confidence: 99%

Analysis of hollow elliptical waveguide with metamaterial cladding

Ghasemzadeh,

Lotfi,

Kheradmand

et al. 2024

Opt. Eng.

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show abstract

“…According to Eqs. ( 18)-( 25), a set of linear algebraic equations can be obtained by using the point by point matching method [37] on the interface:…”

Section: Theoretical Modelmentioning

confidence: 99%

Mode characteristics of nested eccentric waveguides constructed by two cylindrical nanowires coated with graphene

Ji¹,

Yu²,

Xue³

2022

Chinese Phys. B

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A kind of nested eccentric waveguide constructed with two cylindrical nanowires coated with graphene was designed. The mode characteristics of this waveguide were studied using the multipole method. It was found that the three lowest modes (mode 0, mode 1 and mode 2) can be combined by the zero-order mode or/and the first-order modes of two single nanowires. Mode 0 has a higher figure of merit and the best performance among these modes within the parameter range of interest. The mode characteristics can be adjusted by changing the parameters of the waveguide. For example, the propagation length will be increased when the operating wavelength, the minimum spacing between the inner and outer cylinders, the inner cylinder radius and the Fermi energy are increased. However, when the outer cylinder radius, the dielectric constants of region I, or the dielectric constants of region III are increased, the opposite effect can be seen. These results are consistent with the results obtained using the finite element method (FEM). The waveguide structure designed in this paper is easy to fabricate and can be applied to the field of micro/nano sensing.

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