Enhanced group velocity in metamaterials

Details Enhanced group velocity in metamaterials Enhanced group velocity in metamaterials

2004-02-06

arxiv.org/abs/physics/0402037v1

J. Phys. A: Math. Gen., Vol. 37, pp. L19-L24, 2004

Physics

Optics

Scientific paper

10.1088/0305-4470/37/1/L04

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.

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