Enhanced group velocity in metamaterials
Optics
2009-11-10 v1 Classical Physics
Abstract
The Bruggeman formalism is implemented to estimate the refractive index of an isotropic, dielectric, homogenized composite medium (HCM). Invoking the well--known Hashin--Shtrikman bounds, we demonstrate that the group velocity in certain HCMs can exceed the group velocities in their component materials. Such HCMs should therefore be considered as metamaterials.
Cite
@article{arxiv.physics/0402037,
title = {Enhanced group velocity in metamaterials},
author = {T. G. Mackay and A. Lakhtakia},
journal= {arXiv preprint arXiv:physics/0402037},
year = {2009}
}