The negative index of refraction demystified

Martin W. McCall, Akhlesh Lakhtakia, Werner S. Weiglhofer

Research output: Contribution to journalArticle

191 Citations (Scopus)

Abstract

We study electromagnetic wave propagation in media in which the effective relative permittivity and the effective relative permeability are allowed to take any value in the upper half of the complex plane. A general condition is derived for the phase velocity to be oppositely directed to the power flow. That extends the recently studied case of propagation in media for which the relative permittivity and relative permeability are both simultaneously negative, to include dissipation as well. An illustrative case study demonstrates that in general the spectrum divides into five distinct regions.

Original languageEnglish (US)
Pages (from-to)353-359
Number of pages7
JournalEuropean Journal of Physics
Volume23
Issue number3
DOIs
StatePublished - May 1 2002

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refraction
permeability
permittivity
phase velocity
wave propagation
electromagnetic radiation
dissipation
propagation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

McCall, Martin W. ; Lakhtakia, Akhlesh ; Weiglhofer, Werner S. / The negative index of refraction demystified. In: European Journal of Physics. 2002 ; Vol. 23, No. 3. pp. 353-359.
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The negative index of refraction demystified. / McCall, Martin W.; Lakhtakia, Akhlesh; Weiglhofer, Werner S.

In: European Journal of Physics, Vol. 23, No. 3, 01.05.2002, p. 353-359.

Research output: Contribution to journalArticle

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