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.
Original language | English (US) |
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Pages (from-to) | L19-L24 |
Journal | Journal of Physics A: Mathematical and General |
Volume | 37 |
Issue number | 1 |
DOIs | |
State | Published - Jan 9 2004 |
All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Mathematical Physics
- General Physics and Astronomy