Theoretical study of left-handed behavior of composite metamaterials

Penciu, R. S.; Kafesaki, Maria; Gundogdu, T. F.; Economou, E. N.; Soukoulis, Costas M.

doi:10.1016/j.photonics.2005.11.001

Cited by 31 publications

(23 citation statements)

References 16 publications

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“…Metamaterial in this case is represented by the medium which is made of three layers. There are three strips in the first and the third layers, and two split-rings in the second layer [9]. Metamaterial parameters' dependence on frequency in the 75-115 GHz frequency range is presented in the article [9].…”

Section: Numerical Resultsmentioning

confidence: 99%

“…There are three strips in the first and the third layers, and two split-rings in the second layer [9]. Metamaterial parameters' dependence on frequency in the 75-115 GHz frequency range is presented in the article [9]. According to this metamaterial parameters' dependence the MHC waveguide properties have been analysed in the above-mentioned frequency interval.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…This statement has been checked by analysing MHC waveguide. Parameters of the analysed metamaterial correspond to the permittivity and permeability dependence on frequency published in [9]. The values of permittivity and permeability of the metamaterial medium that we have used belong to the 75-115 GHz frequency range.…”

Section: Analysis Of the Mhc Waveguide Properties On The Waveguide Ramentioning

confidence: 99%

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Dispersion characteristics of metamaterial hollow-core cylindrical waveguides

Nickelson¹

2007

Lithuanian J. Phys.

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The work deals with the study of metamaterial hollow-core cylindrical (MHC) waveguides. In the article the solution of Maxwell's equations to analyse a MHC waveguide is presented. A dispersion equation was obtained in the form of a determinant. We created the computer algorithm in MATLAB language to investigate the dispersion properties of the MHC waveguide. The MHC waveguide was studied in the frequency range from 75 to 115 GHz with different waveguide parameters (radius, azimuthal index). We have analysed the dependences of the MHC waveguide main and higher order modes' dispersion characteristics on a waveguide radius and an azimuthal index.

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Section: Numerical Resultsmentioning

confidence: 99%

Section: Numerical Resultsmentioning

confidence: 99%

Section: Analysis Of the Mhc Waveguide Properties On The Waveguide Ramentioning

confidence: 99%

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Dispersion characteristics of metamaterial hollow-core cylindrical waveguides

Nickelson¹

2007

Lithuanian J. Phys.

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“…To obtain a negative refractive index n we need simultaneously negative values of the effective permeability μ(ω) and permittivity ε(ω); hence a simultaneous negative magnetic and electric response is needed. In the microwave region a negative permittivity is usually achieved by combining the SRRs with an array of thin continuous wires, which provide a plasmonic ε(ω) with effective plasma frequencies in the microwave region [6][7][8][9][10][11][36][37][38][39]. This approach is not well suited for THz frequencies because of dimensional problems and the absence of good conductors [32].…”

Section: Frequency Dependence Of the Magnetic Response Of Metamaterialsmentioning

confidence: 99%

The science of negative index materials

Soukoulis

Zhou

Koschny

et al. 2008

J. Phys.: Condens. Matter

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Metamaterials are designed to have structures that make available properties not found in Nature. Their unique properties (such as negative index of refraction, n) can be extended from GHz all the way to optical frequencies. We review the scaling properties of metamaterials that have been fabricated and give negative n and negative permeability, μ. It is found that most of the experimentally realized metamaterials have λ/a between 2 (THz and optical region) and 12 (GHz region), where λ is the operation wavelength and a is the size of the unit cell. The transmission losses for the experimental structures and the ratio λ/a for the simulated structures are presented. Finally, a comparison of the different metamaterial designs (fishnet, cut and/or continuous wires, and split-ring resonators and wires) is given.

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“…Some scattering problems have created an enormous demand for modeling and simulation of cylinders with metamaterial layers [5][6][7][8][9][10][11][12]. The full wave iterative algorithm for the computation of the diffracted far field of the infinitely long cylinders that were coated with several dielectric layers is discussed in [5].…”

Section: Introductionmentioning

confidence: 99%

Microwave Scattering and Absorption by a Multilayered Lossy Metamaterial --- Glass Cylinder

Bucinskas¹,

Nickelson²,

Shugurovas³

2010

PIER

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Abstract-Here we present the rigorous electrodynamical solution of diffraction problem about the microwave scattering by a multilayered cylinder. The number and thickness of layers is not limited. We offer the solution when the central core of multilayered cylinder can be made of different isotropic materials as a metamaterial, a ceramic matter or a semiconductor as well as of a perfect metal. The isotropic coated layers can be of strongly lossy materials. The signs of the complex permittivity and complex permeability can be negative or positive in different combinations. Here we present dependencies of the scattered power of the incident perpendicularly and parallel polarized microwaves by the metamaterial-glass cylinder on signs of metamaterial permittivity as well as permeability. The glass layer absorbed power and metamaterial core absorbed power dependent on the hypothetic metamaterial permittivity and permeability signs at the wide range frequencies 1-120 GHz are also presented here. The metamaterial core of cylinder has a radius equal to 0.0018 m and the thickness of the coated acrylic-glass layer is 0.0002 m. We have found some conditions when the scattered-power has minimal values and the absorbed power by the coated acrylic glass layer is constant in a very wide frequency range. We have discovered that the glass layer absorbed power increases with increasing of the frequency at the range 1-120 GHz for both microwave polarizations.

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Theoretical study of left-handed behavior of composite metamaterials

Cited by 31 publications

References 16 publications

Dispersion characteristics of metamaterial hollow-core cylindrical waveguides

Dispersion characteristics of metamaterial hollow-core cylindrical waveguides

The science of negative index materials

Microwave Scattering and Absorption by a Multilayered Lossy Metamaterial --- Glass Cylinder

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