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Bandwidth constraints for passive superluminal propagation through metamaterials

Publiceringsår: 2012
Språk: Engelska
Sidor: 1015-1021
Publikation/Tidskrift/Serie: Applied Physics A
Volym: 109
Nummer: 4
Dokumenttyp: Artikel

Sammanfattning

Superluminal transmission of electromagnetic waves is usually observed in a narrow bandwidth range and the velocity outside this range is subluminal. In this paper, it is shown that the transmission coefficient for superluminal propagation through a periodic metamaterial structure satisfies a sum rule. The sum rule and its corresponding physical bound relate frequency regions with a phase velocity above an arbitrary threshold with the thickness of the slab. The theoretical results are illustrated with numerical examples.

Disputation

Nyckelord

  • Physics and Astronomy
  • Technology and Engineering

Övriga

Published
Yes
  • Electromagnetic theory
  • ISSN: 0947-8396

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