Restoring the physical meaning of metamaterial constitutive parameters

By Andrea Alù. 2010

133 citations recorded by the source corpus.

Metamaterial homogenization is often based on implicit assumptions inspired to natural material models. Retrieved effective permittivity and permeability, however, are often non-physical, especially near the array resonances, of most interest for metamaterial applications. We explain here the nature of typical homogenization artifacts, relating them to an inherent form of magneto-electric coupling associated with the finite phase velocity along metamaterial arrays. Our findings allow restoring the proper definition and physical meaning of local constitutive parameters for metamaterials.

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

View Paper: https://www.semanticscholar.org/paper/607ce3fab5e96979b7b74772cccf524af1d5b931

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Richard W. Ziolkowski
2. Nader Engheta
3. Fernando Lisboa Teixeira

In Biomedical Engineering

1. Richard W. Ziolkowski

In Electronic, Optical and Magnetic Materials

1. A. Gregersen
2. O. Sigmund
3. O. Breinbjerg
4. Niels Asger Mortensen
5. T. V. Hansen
6. Samel Arslanagic
7. Richard W. Ziolkowski
8. A. Erentok

Citations in the corpus

• A Review of the Scattering-Parameter Extraction Method with Clarification of Ambiguity Issues in Relation to Metamaterial Homogenization (2012, background): “Moreover, as shown in [46], spatial-dispersion effects, usually not taken into account in the basic retrieval schemes, can introduce artifacts into the data that will invali date the KramersKrönig outcomes.”