Observation of negative refraction and negative phase velocity in left-handed metamaterials

Koray Aydin*, Kaan Guven, Costas M. Soukoulis, Ekmel Ozbay

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

98 Scopus citations

Abstract

We report the transmission characteristics of a two-dimensional (2D) composite metamaterial (CMM) structure in free space. At the frequencies where left-handed transmission takes place, we experimentally confirmed that the CMM structure has effective negative refractive index. Phase shift between consecutive numbers of layers of CMM is measured and phase velocity is shown to be negative at the relevant frequency range. Refractive index values obtained from the refraction experiments and the phase measurements are in good agreement.

Original languageEnglish (US)
Article number124102
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number12
DOIs
StatePublished - Mar 21 2005

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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