On the reinterpretation of resonances in split-ring-resonators at normal incidence

Electromagnetic resonances in individual and coupled split-ring resonators

We study experimentally and numerically the electromagnetic resonances in split ring resonators ~SRRs!, around 1 GHz. For an individual SRR, we show that both electric and magnetic fields can induce resonances, the magnetic one being the strongest. The utilization of such resonant structures as efficient microwave filter is also demonstrated. The coupling between two or more SRRs can be quite c...

Tunable Superconducting Split Ring Resonators

Magnetic response of split ring resonators at terahertz frequencies

Costas M. Soukoulis 1, , Thomas Koschny, Jiangfeng Zhou, Maria Kafesaki, and Eleftherios N. Economou 1 Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA 2 Institute of Electronic Structure and Laser – FORTH, and Department of Materials Science and Technology, University of Crete, Greece 3 Institute of Electronic Structure and Laser – FORTH, an...

Experimental and numerical analyses of the resonances of split ring resonators

The authors investigate the resonances of split-ring resonator (SRR) structures experimentally and theoretically. The transmission measurements were performed on a single SRR unit cell and periodic arrays of SRRs. The magnetic response of the SRR structure was demonstrated by comparing the SRRs’ transmission spectra of with that of closed ring resonators (CRR). The surface currents along the SR...

Fano resonances in THz metamaterials composed of continuous metallic wires and split ring resonators.

We demonstrate theoretically and experimentally that Fano resonances can be obtained in terahertz metamaterials that are composed of periodic continuous metallic wires dressed with periodic split ring resonators. An asymmetric Fano lineshape has been found in a narrow frequency range of the transmission curve. By using a transmission line combined with lumped element model, we are able to not o...