On the refractive index for a nonmagnetic two-component medium: Resolution of a controversy

Joseph B. Geddes, Tom G. Mackay, Akhlesh Lakhtakia

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

The refractive index of a dielectric medium comprising both passive and inverted components in its permittivity was determined using two methods: (i) in the time-domain, a finite-difference algorithm to compute the frequency-domain reflectance from reflection data for a pulsed plane wave that is normally incident on a dielectric half-space and (ii) in the frequency-domain, the deflection of an obliquely incident Gaussian beam on transmission through a dielectric slab. The dielectric medium was found to be an active medium with a negative real part for its refractive index. Thereby, a recent controversy in the scientific literature was resolved.

Original languageEnglish (US)
Pages (from-to)120-125
Number of pages6
JournalOptics Communications
Volume280
Issue number1
DOIs
StatePublished - Dec 1 2007

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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