Control of single-mode operation in a circular waveguide filled by a longitudinally magnetized gyroelectromagnetic medium

Fesenko, Volodymyr I.; Tuz, Vladimir R.; Fedorin, Illia V.; Sun, Hong‐Bo; Shulga, V. M.; Han, Wei

doi:10.1080/09205071.2017.1346486

Cited by 2 publications

(3 citation statements)

References 31 publications

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“…where the upper sign '+' and the lower sign '−' are related to the left-handed and right-handed circularly polarized eigenwaves of the bulk gyroelectromagnetic medium, respectively (i.e. it means that these eigenwaves have different propagation constants, and each of these eigenwaves sees the medium as if it were an isotropic medium with the corresponding effective refractive index [50,51]; since material losses in both subsystems are accounted for, these eigenwaves also experience circular dichroism). With the chosen problem statement, the external static magnetic field affects the propagation of the left-handed circularly polarized eigenwave only, for which the effective parameters of the medium are plotted in figure 2 as functions of the frequency and filling factors of the FSS (in particular, we plot these functions in the {ω − ∆l m } parameter space; ∆l s = 1 − ∆l m ).…”

Section: Resultsmentioning

confidence: 99%

Magneto-plasmonic scattering by a disk-shaped particle made of an artificial dielectric

R Tuz,

Evlyukhin

2024

J. Phys. D: Appl. Phys.

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The main features of artificial dielectrics are high anisotropy and controllable heterogeneity, as well as adjustable values of their synthesized material parameters. In this work, we numerically study the scattering features of a disk-shaped particle made of an artificial dielectric (finely stratified structure, FSS) that is composed of magnetic and semiconductor constituents influenced by an external static magnetic field. The tensor-valued permittivity and permeability of the FSS are derived involving the effective medium theory. Due to a specific composition of the FSS, the material properties of the disk simultaneously acquire electric and magnetic gyrotropy, which depends on the proportion of the semiconductor and magnetic components included in the FSS. It is supposed that the ferromagnetic and plasma resonances of the constitutive materials are closely spaced. In particular, we examine the electric and magnetic dipole contributions to the scattering and absorption cross-sections obtained in the framework of the multipole decomposition method while accounting for the polarizability and magnetization induced in the particle by the field of incoming radiation. By varying the proportion of components of the artificial dielectric, we demonstrate the magneto-plasmonic functionality of the particle. Our presentation generalizes and complements several known solutions obtained separately for either magnetic or dielectric anisotropic particles. This approach can be used to study magneto-optical effects in metamaterials and metasurfaces composed of an ensemble of gyroelectric and gyromagnetic particles that is important for both plasmonic and photonic applications.

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Section: Resultsmentioning

confidence: 99%

Magneto-plasmonic scattering by a disk-shaped particle made of an artificial dielectric

R Tuz,

Evlyukhin

2024

J. Phys. D: Appl. Phys.

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“…Magnetically tunable circulator in terahertz frequency regime was reported by F. Fan et al [17]. V. I. Fesenko et al [18] made extensive study on control of single mode operation in a circular wave guide filled with ferrites. N. Dib et al [19] simulated the propagation characteristics of cylindrical transmission lines that contain magnetized ferrite material using the finite-difference time-domain method and the spectraldomain analysis.…”

Section: Introductionmentioning

confidence: 99%

“…These MOPhCs has periodic arrangement of magnetic layers and other media such as dielectrics, semiconductor and metal layers of various geometries. The ferrite based photonic crystals [12][13][14][15][16][17], also known as ferrite photonic crystals (FPhCs), waveguides [18] and transmission lines [19] are new hot spot in the photonic research due to their unique characteristics. These structures have ferrites as one of the constituent layer in their unit cell.…”

Section: Introductionmentioning

confidence: 99%

Dispersion Characteristics of Electromagnetic Wave in Magnetized One Dimensional Ferrite Photonic Crystals with Mixed Field Configuration

Sharma

Prasad

2021

Preprint

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The dispersion characteristics and phase index of electromagnetic waves in two types of magnetized one dimensional ferrite photonic crystals with mixed field configuration are studied for transverse magnetic mode. The dispersion equation and formula for phase index are derived using transfer matrix method. It is found that in type-1 & type-2 magnetized one dimensional ferrite photonic crystals, photonic band gaps (PBGs) show dependence on HOYIG and HONI respectively. The PBGs corresponding to thinner YIG layer are at higher frequency side at fixed. The variation of frequency-filling factor shows that PBGs occur in the form of lobe for both types. It is observed that the phase index is strongly influenced by external magnetic fields, and filling factor. It is demonstrated that PBGs in phase index occur in the form of lobes at fixed. Also, with decrease in the magnitude of phase index, number of lobe increases. The phase index, field and frequency plots show that there are multiple peaks in the PBGs of phase index in the lower frequency.

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Control of single-mode operation in a circular waveguide filled by a longitudinally magnetized gyroelectromagnetic medium

Cited by 2 publications

References 31 publications

Magneto-plasmonic scattering by a disk-shaped particle made of an artificial dielectric

Magneto-plasmonic scattering by a disk-shaped particle made of an artificial dielectric

Dispersion Characteristics of Electromagnetic Wave in Magnetized One Dimensional Ferrite Photonic Crystals with Mixed Field Configuration

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