Simulation and micro-fabrication of optically switchable split ring resonators

TitleSimulation and micro-fabrication of optically switchable split ring resonators
Publication TypeJournal Article
Year of Publication2007
AuthorsGundogdu TF, Gokkavas M, Guven K, Kafesaki M, SoukouhS CM, Ozbay E
Journal TitlePhotonics and Nanostructures-Fundamentals and Applications
Volume5
Pages106-112
Date PublishedOct
Type of ArticleArticle
ISBN Number1569-4410
Accession NumberISI:000250745300010
Keywordsleft handed materials, metamaterials, negative index, photoconductive, refraction, simulation, split ring resonators, transmission
Abstract

The effect of conductivity variation as a proposed method for the investigation of photoconductive switching properties of split ring resonators (SRRs) is simulated. Three different systems that are applicable under certain fabrication and/or optical excitation conditions are described. The simulated transmission spectrum indicates that for a large range of dark conductivity values, complete switching of the SRR resonance is possible. One of the simulated systems, involving split ring resonators on Si substrate, was fabricated and characterized. The transmission spectrum of that system was measured, with the Si in its high-resistivity state, and a -60 dB dip between 108 and 115 GHz, due to SRRs magnetic resonance, was observed. (C) 2007 Published by Elsevier B.V.

DOI10.1016/j.photonics.2007.07.001
Alternate JournalPhotonics Nanostruct.