ELECTROMAGNETIC GUIDED WAVES IN A METAMATERIAL-MAGNETIC WAVEGUIDE STRUCTURE

The growing and rapid interest in new artificial metamaterials, whose properties differ from the normal materials has motivated further investigations. The metamaterials have simultaneously negative permittivity and permeability. In this work, we have demonstrated theoretically the existence and behavior of the TE guided waves in a ferromagnetic/metamaterial/antiferromagnetic waveguide structure. The dispersion characteristics are performed for different kinds of metamaterials. The existence and the type of the solutions to the guided waves with respect to different physical parameters are also investigated and discussed. It has been shown that the metamaterials can lead to different, new unusual properties.

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Comparing guided modal properties of surface waves along single- and double-negative indexed slab waveguides

Opto-Electronics Review ◽

10.2478/s11772-010-0041-8 ◽

2010 ◽

Vol 18 (4) ◽

Cited By ~ 5

Author(s):

K. Kim ◽

Y. Cho

Keyword(s):

Surface Waves ◽

Negative Permittivity ◽

Double Negative ◽

Dispersion Characteristics ◽

Slab Waveguides ◽

Normalized Frequency ◽

Guided Mode ◽

Permittivity And Permeability ◽

Frequency Regime ◽

Mode Characteristics

AbstractThe guided dispersion characteristics of the fundamental symmetric and asymmetric modes of surface waves along single- and double-negative indexed slab waveguides are investigated, and a comparative analysis made when varying the single- and double-negative permittivity and permeability. While the values of the permittivity and permeability of the slab region are varied to obtain a salient picture of the guided dispersion characteristics, identical absolute product values are used for both slab cases to facilitate a reasonable comparison. In particular, in common ranges where guided mode solutions coexist for both the single- and double-negative indexed slabs, the guided mode characteristics are similar with a lower normalized frequency regime, indicating that the sign of the material parameters has a negligible effect, whereas the characteristics become quite different as the normalized frequency increases. Some other anomalous guided dispersion properties are also discussed and compared with previously reported results.

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SLOW SURFACE ELECTROMAGNETIC WAVES AT THE METASURFACE / DISSIPATIVE DIELECTRIC INTERFACE

10.46813/2020-130-030 ◽

2020 ◽

pp. 30-35

Author(s):

V.K. Galaydych ◽

A.E. Sporov ◽

V.P. Olefir ◽

N.A. Azarenkov

Keyword(s):

Electromagnetic Waves ◽

Waveguide Structure ◽

Negative Permittivity ◽

Energy Losses ◽

Flat Slab ◽

Permittivity And Permeability ◽

Slow Surface ◽

Full Compensation ◽

Surface Electromagnetic Waves ◽

Waves Propagation

The possibilities of the slow surface electromagnetic waves propagation along the flat boundary of a metasurface with a dissipative dielectric are studied. The metasurface is a thin flat slab of metamaterial with simultaneously negative permittivity and permeability with "amplification". All media were assumed to be isotropic. Dispersion dependences are obtained for the eigenmodes of such a waveguide structure. The possibility of full compensation of the energy losses of surface waves by the appropriate choice of the “gains” values is demonstrated.

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