A lot of recent interest has been focused on a new class of materials, the so‐called left‐
handed materials (LHMs) or negative‐index materials, which exhibit highly unusual …

Metamaterials is a young subject born in the 21st century. It is concerned with artificial
materials which can have electrical and magnetic properties difficult or impossible to find in …

We study the frequency dependence of the effective electromagnetic parameters of left-
handed and related metamaterials of the split ring resonator and wire type. We show that the …

Metamaterials with artificial optical properties have attracted significant research interest. In
particular, artificial magnetic resonances with non-unity permeability tensor at optical …

Metamaterial homogenization is often based on implicit assumptions inspired by
naturalmaterial models. However, retrieved permittivity and permeability frequently retain …

A decade of research on metamaterials (MMs) has yielded great progress in artificial
electromagnetic materials in a wide frequency range from microwave to optical frequencies …

We present an effective-medium model for calculating the frequency-dependent effective
permittivity ε (ω) and permeability μ (ω) of metamaterial composites containing spherical …

Various materials have been examined to obtain permittivity and permeability values
required for detailed investigations on functional materials like microwave-absorbing and …

We introduce an approach for retrieving effective parameters of metamaterials based on the
Bloch-mode analysis of quasiperiodic composite structures. We demonstrate that, in the …

The anti-resonant phenomenon of effective electromagnetic parameters of metamaterials
has aroused controversy due to negative imaginary permittivity or permeability. It is …