Multi-gap individual and coupled split-ring resonator structures

TitleMulti-gap individual and coupled split-ring resonator structures
Publication TypeJournal Article
Year of Publication2008
AuthorsPenciu RS, Aydin K, Kafesaki M, Koschny T, Ozbay E, Economou EN, Soukoulis CM
Journal TitleOptics Express
Date Published10/01
Type of ArticleArticle
ISBN Number1094-4087
Accession NumberISI:000260865900097
Keywordsbehavior, design, ELECTROMAGNETICALLY INDUCED TRANSPARENCY, left-handed materials, MAGNETIC-RESONANCE, metamaterials, MU, negative refractive-index

We present a systematic numerical study, validated by accompanied experimental data, of individual and coupled split ring resonators (SRRs) of a single rectangular ring with one, two and four gaps. We discuss the behavior of the magnetic resonance frequency, the magnetic field and the currents in the SRRs, as one goes from a single SRR to strongly interacting SRR pairs in the SRR plane. We show that coupling of the SRRs along the E direction results to shift of the magnetic resonance frequency to lower or higher values, depending on the capacitive or inductive nature of the coupling. Strong SRR coupling along propagation direction usually results to splitting of the single SRR resonance into two distinct resonances, associated with peculiar field and current distributions. (C) 2008 Optical Society of America

Alternate JournalOpt. Express