Enhanced group velocity in metamaterials

Tom G. Mackay, Akhlesh Lakhtakia

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

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 languageEnglish (US)
Pages (from-to)L19-L24
JournalJournal of Physics A: Mathematical and General
Volume37
Issue number1
DOIs
StatePublished - Jan 9 2004

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • General Physics and Astronomy

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