Experimental measurement of negative index in an all-dielectric metamaterial

Lepetit, Thomas; Akmansoy, É.; Ganne, Jean‐Pierre

doi:10.1063/1.3232222

Cited by 40 publications

(22 citation statements)

References 26 publications

(23 reference statements)

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“…However, it is inconvenient to fabricate NRIM for practical devices with either of these approaches owing to the multiple-step fabrication process. Therefore, Vendik and Gashinova have theoretically investigated the possibility that the effective isotropic negative refractive index medium is realizable through the use of two different dielectric sphere lattices embedded in a dielectric matrix [80], and in this regard, experimental verification has been completed recently [21,81]. The underlying physics is explicit since the magnetic fundamental resonance mode and electrical resonance mode can be overlapped by scaling the size and the lattice of the dielectric inclusions.…”

Section: High-permittivity Dielectric Compositesmentioning

confidence: 99%

Enriching the Symmetry of Maxwell Equations through Unprecedented Magnetic Responses of Artificial Metamaterials and Their Revolutionary Applications

et al. 2011

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Abstract:The major issue regarding magnetic response in nature-"negative values for the permeability μ of material parameters, especially in terahertz or optical region" makes the electromagnetic properties of natural materials asymmetric. Recently, research in metamaterials has grown in significance because these artificial materials can demonstrate special and, indeed, extraordinary electromagnetic phenomena such as the inverse of Snell's law and novel applications. A critical topic in metamaterials is the artificial negative magnetic response, which can be designed in the higher frequency regime (from microwave to optical range). Artificial magnetism illustrates new physics and new applications, which have been demonstrated over the past few years. In this review, we present recent developments in research on artificial magnetic metamaterials including split-ring resonator structures, sandwich structures, and high permittivity-based dielectric composites. Engineering applications such as invisibility cloaking, negative refractive index medium, and slowing light fall into this category. We also discuss the possibility that metamaterials can be suitable for realizing new and exotic electromagnetic properties. OPEN ACCESSSymmetry 2011, 3 284

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Section: High-permittivity Dielectric Compositesmentioning

confidence: 99%

Enriching the Symmetry of Maxwell Equations through Unprecedented Magnetic Responses of Artificial Metamaterials and Their Revolutionary Applications

et al. 2011

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“…Moreover, Peng et al [10] observed experimentally a left-handed behavior at gigahertz frequencies in an array of standard dielectric resonators. Lepetit et al [11] have measured a negative refractive index in an all-dielectric metamaterial in the microwave frequency range. Shibuya et al [12] predicted theoretically a left-handed behavior in a lattice combining two sets of TiO 2 cubes with two different sizes.…”

Section: Introductionmentioning

confidence: 99%

TiO2 microsphere-based metamaterials exhibiting effective magnetic response in the terahertz regime

et al. 2012

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Thin layers of all-dielectric metamaterials based on TiO 2 spherical particle resonators are investigated. A new method based on spray drying of dissolved nanoparticles is used in the fabrication process. Spectral footprints of electric and magnetic dipoles are reported numerically and through experimental tests. It is a promising step for the construction of novel three-dimensional isotropic metamaterials exhibiting desired electromagnetic properties for terahertz applications.

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“…10% by using layered dielectric spheres while considering realistic losses. Experiments on single sphere structures were performed only by Peng et al (2007) [18], Zhao et al (2008) [19], Cai et al (2008) [20], and Lepetit et al (2009) [21]. Several kinds of all-dielectric MMs were fabricated and tested to verify the NRI characteristics.…”

Section: Introductionmentioning

confidence: 99%

Increasing the Nri Bandwidth of Dielectric Sphere-Based Metamaterials by Coating

Yan¹,

Vandenbosch²

2012

PIER

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Abstract-A new metamaterial topology is proposed, based on dielectric coated spheres. The effect of the coating is an increased negative permittivity and permeability bandwidth compared with the non-coated spheres. The influence of the dimensional parameters is analyzed, and the relation of each of them with the bandwidth is studied. The theoretical results are confirmed by full wave simulations using CST. A combination of the new topology with wires is used to reach an NRI bandwidth of about 23%. To the knowledge of the authors, to date this is one of the highest bandwidths reported in literature.

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Experimental measurement of negative index in an all-dielectric metamaterial

Abstract: Articles you may be interested inSingle-and double-negative refractive indices of combined metamaterial structure Negative-zero-positive metamaterial with omega-type metal inclusions

Cited by 40 publications

References 26 publications

Enriching the Symmetry of Maxwell Equations through Unprecedented Magnetic Responses of Artificial Metamaterials and Their Revolutionary Applications

Enriching the Symmetry of Maxwell Equations through Unprecedented Magnetic Responses of Artificial Metamaterials and Their Revolutionary Applications

TiO2 microsphere-based metamaterials exhibiting effective magnetic response in the terahertz regime

Increasing the Nri Bandwidth of Dielectric Sphere-Based Metamaterials by Coating

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