Isotropic metamaterial electromagnetic lens

Verney, E.; Sauviac, B.; Simovski, Constantin

doi:10.1016/j.physleta.2004.07.032

Cited by 24 publications

(18 citation statements)

References 7 publications

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“…That way was suggested in [29]. A similar approach was developed in [39,40] where a practically isotropic doubly-negative composite was designed. The unit cell in these works was formed by six properly arranged Ω-shaped metal particles.…”

Section: Artificial Magnetism Without Resonant Multipole Polarizationmentioning

confidence: 99%

On effective electromagnetic parameters of artificial nanostructured magnetic materials

Simovski¹,

Tretyakov²

2010

Photonics and Nanostructures - Fundamentals and Applications

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In this paper we discuss effective material parameter description of new nanostructures designed to perform as artificial magnetic materials for visible light. Among these structures there are various split-ring resonators, dual-bar structures, fishnet layers and other geometries. Artificial magnetic response in these structures appears due to weak spatial dispersion effects, and it is important to study the conditions under which the magnetic response can be adequately measured with effective permeability tensor. On the examples of dual bars and split rings we show that this is possible only under some quite restrictive conditions. In the general case, more complicated constitutive relations with more effective material parameters need to be developed.

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Section: Artificial Magnetism Without Resonant Multipole Polarizationmentioning

confidence: 99%

On effective electromagnetic parameters of artificial nanostructured magnetic materials

Simovski¹,

Tretyakov²

2010

Photonics and Nanostructures - Fundamentals and Applications

Self Cite

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“…5 was studied [47] neglecting losses. In practice, this structure demonstrated high resonant losses [48] and represents a poor implementation of the Pendry lens [1].…”

Section: An Example Of a P-m-latticementioning

confidence: 99%

Bloch material parameters of magneto-dielectric metamaterials and the concept of Bloch lattices

Simovski

2007

Metamaterials

110

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“…To overcome this obstacle various approaches for obtaining isotropic MMs have been put forward. [8][9][10][11][12][13][14] A systematic approach to design an isotropic magnetically active MM was proposed by Baena et al 15 The first step is to choose a highly symmetric MM. Such MM is constructed based on a cubic unit cell arranged at a cubic lattice.…”

Section: Introductionmentioning

confidence: 99%

High symmetry versus optical isotropy of a negative-index metamaterial

et al. 2010

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Optically isotropic metamaterials ͑MMs͒ are required for the implementation of subwavelength imaging systems. At first glance one would expect that their design should be based on unit cells exhibiting a cubic symmetry being the highest crystal symmetry. It is anticipated that this is a sufficient condition since it is usually assumed that light does not resolve the spatial details of MM but experiences the properties of an effective medium, which is then optically isotropic. In this work we challenge this assumption by analyzing the isofrequency surfaces of the dispersion relation of the split cube in carcass negative index MM. We show that this MM is basically optically isotropic but not in the spectral domain where it exhibits negative refraction. The primary goal of this contribution is to introduce a tool that allows to probe a MM against optical isotropy.

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Isotropic metamaterial electromagnetic lens

Cited by 24 publications

References 7 publications

On effective electromagnetic parameters of artificial nanostructured magnetic materials

On effective electromagnetic parameters of artificial nanostructured magnetic materials

Bloch material parameters of magneto-dielectric metamaterials and the concept of Bloch lattices

High symmetry versus optical isotropy of a negative-index metamaterial

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