Modes in a Parallel-Plate Guide Filled with a Magnetoplasma

Miyahara, Shunji; Kobayashi, Sumio

doi:10.1143/jjap.27.2340

Cited by 3 publications

(3 citation statements)

References 5 publications

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“…The upper WG region is the manifestation of the dielectric response in any MD, magnetic semiconductor, or magnetic semimetal and may exist not only in the Voigt configuration [102,103]. So, semiconductors or semimetals in an external magnetic field [102,103,109] or with intrinsic magnetic moment, such as dilute magnetic semiconductors [105], in the Voigt configuration may possess both lower and upper WG regions. However, for the design of the WGs with strong nonreciprocity effects, which do not need external sources of magnetic field, it is better to use ferromagnets, where the AHE is much stronger than in MDs [104] or magnetic semiconductors [106].…”

Section: Nonreciprocal Wavesmentioning

confidence: 99%

“…[114,115]. The upper WG region is the manifestation of the dielectric response in any MD, magnetic semiconductor, or magnetic semimetal and may exist not only in the Voigt configuration [102,103]. So, semiconductors or semimetals in an external magnetic field [102,103,109] or with intrinsic magnetic moment, such as dilute magnetic semiconductors [105], in the Voigt configuration may possess both lower and upper WG regions.…”

Section: Nonreciprocal Wavesmentioning

confidence: 99%

“…[101]. Notice that in the Faraday configuration (magnetic field is along the propagation direction, parallel to the film) also the WG modes may exist but they will be reciprocal [102,103]. For the design of compact optical elements with strong nonreciprocity effects, which do not need external sources of magnetic field, it is better to use materials with strong AHE and good WG properties.…”

Section: Introductionmentioning

confidence: 99%

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Giant tunable nonreciprocity of light in Weyl semimetals

2018

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The propagation of light in Weyl semimetal films is analyzed. The magnetic family of these materials is known by anomalous Hall effect, which, being enhanced by the large Berry curvature, allows one to create strong gyrotropic and nonreciprocity effects without external magnetic field. The existence of nonreciprocal waveguide electromagnetic modes in ferromagnetic Weyl semimetal films in the Voigt configuration is predicted. Thanks to the strong dielectric response caused by the gapless Weyl spectrum and the large Berry curvature, ferromagnetic Weyl semimetals combine the best waveguide properties of magnetic dielectrics or semiconductors with strong anomalous Hall effect in ferromagnets. The magnitude of the nonreciprocity depends both on the internal Weyl semimetal properties, the separation of Weyl nodes, and the external factor, the optical contrast between the media surrounding the film. By tuning the Fermi level in Weyl semimetals, one can vary the operation frequencies of the waveguide modes in THz and mid-IR ranges. Our findings pave the way to the design of compact, tunable, and effective nonreciprocal optical elements. arXiv:1808.00342v3 [cond-mat.mes-hall]

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Section: Nonreciprocal Wavesmentioning

confidence: 99%

Section: Nonreciprocal Wavesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Giant tunable nonreciprocity of light in Weyl semimetals

2018

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Waves in Bounded Magnetized Plasmas

Ivanov

1999

Advanced Technologies Based on Wave and Beam Generated Plasmas

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The Spectrum of Electromagnetic Waves in a Planar Gyrotropic Plasma Waveguide

Ivanov

Nikolaev

1998

Jpn. J. Appl. Phys.

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A detailed investigation of the spectrum of the waves propagating in the parallel-plate waveguide is carried out. It is shown that four families of waves can propagate in the planar gyrotropic plasma waveguide: plasma, cyclotron, anisotropic and waveguide modes. It is proved that the singular waves propagate in the crossing points of the waves with the complex zone boundary. The influence of the width of the waveguide and the magnetization of the plasma on the spectrum of the waves is analysed. As a rule the, cut-off frequencies of the propagating modes decrease with an increase in the width, and increase with the increase of magnetization. The fields of different kinds of the waves are plotted and a comparison is made between them. The evolution of the fields along the dispersion curves is shown.

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Modes in a Parallel-Plate Guide Filled with a Magnetoplasma

Cited by 3 publications

References 5 publications

Giant tunable nonreciprocity of light in Weyl semimetals

Giant tunable nonreciprocity of light in Weyl semimetals

Waves in Bounded Magnetized Plasmas

The Spectrum of Electromagnetic Waves in a Planar Gyrotropic Plasma Waveguide

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