Current Applied Physics, Vol.16, No.4, 469-474, 2016
Bilayer metamaterial design for switchable electromagnetically-induced transparency-like response
We demonstrated experimentally that a controllable electromagnetically-induced transparency (EIT)-like spectral response at microwave frequencies can be obtained in metamaterials. The present design consists of two snake-shape resonators (SRs) with one and two bars. At the same time, each resonator is constructed at the top and the bottom layers. In our scheme, phase coupling between two SRs (assigned as the bright mode), which is activated by incident electromagnetic field, can lead to the EIT-like effect. Furthermore, we confirmed that the EIT-like feature could be controlled by simply varying the bar length of two different SRs. Our work proposes the alternative way to acquire the tunable EIT-like effect and these results reflect the possibility for achieving in slow-light devices and novel sensors. (C) 2016 Elsevier B.V. All rights reserved.