Strong spatial dispersion in wire media in the very large wavelength limit

By Pavel Belov, Ricardo Marqués, Stanislav I. Maslovski, Igor Nefedov, Mario G. Silveirinha, Constantin R. Simovski, Sergei A. Tretyakov. 2002

577 citations recorded by the source corpus.

It is found that there exist composite media that exhibit strong spatial dispersion even in the very large wavelength limit. This follows from the study of lattices of ideally conducting parallel thin wires (wire media). In fact, our analysis reveals that the description of this medium by means of a local dispersive uniaxial dielectric tensor is not complete, leading to unphysical results for the propagation of electromagnetic waves at any frequencies. Since nonlocal constitutive relations have been usually considered in the past as a second-order approximation, meaningful in the short-wavelength limit, the aforementioned result presents a relevant theoretical interest. In addition, since such wire media have been recently used as a constituent of some discrete artificial media (or metamaterials), the reported results open the question of the relevance of the spatial dispersion in the characterization of these artificial media.

Subfields: Aerospace Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/3af8067b8b6275716922ffe41ec233fe35b9f625

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In Aerospace Engineering

In Atomic and Molecular Physics, and Optics

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Citations in the corpus

Electromagnetic Characterization of Textured Surfaces Formed by Metallic Pins (2008, background): “Following [27], the wire medium is a microstructured mate-”
Nonlocal flat optics (2022, background): “significantly enhanced in artificial metamaterials, even if all constituent materials are local, through the engineered interaction between neighboring elements and/or by using meta-atoms with a multipolar or bi-anisotropic response [14],[15].”
Realization of the PEMC boundary (2005, background): “Lattices of conducting wires have been studied recently for material design [13], [14].”