Experimental analysis of true left-handed behaviour and transmission properties of composite metamaterials

Kaan Guven*, Koray Aydin, Ekmel Ozbay

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

We report the true left-handed transmission of a composite metamaterial (CMM) consisting of periodically stacked split-ring resonator (SRR) and wire elements. The negative permeability (μ < 0) gap is demonstrated explicitly by comparing SRR and closed-ring resonator structures. We confirm experimentally that the plasma cut-off frequency of the CMM is determined by the combined dielectric response of SRR and wire elements, and it is much lower than that of the wire-only medium. This is crucial to identify the left-handed transmission bands of the CMM. We further investigate the effect of intralayer and interlayer disorder on the transmission spectrum of CMM arising from misaligned fabrication and stacking of the SRR layers. We found that the intralayer disorder affects the μ < 0 gap of SRRs and the left-handed transmission band of CMM significantly, whereas the SRR transmission is rather immune to interlayer disorder.

Original languageEnglish (US)
Pages (from-to)75-78
Number of pages4
JournalPhotonics and Nanostructures - Fundamentals and Applications
Volume3
Issue number2-3
DOIs
StatePublished - Dec 1 2005

Keywords

  • Left-handed material
  • Negative refraction
  • Split ring resonator

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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