作者
Rakesh Sarkar, Dipa Ghindani, Koijam Monika Devi, SS Prabhu, Amir Ahmad, Gagan Kumar
发表日期
2019/12/2
期刊
Scientific reports
卷号
9
期号
1
页码范围
18068
出版商
Nature Publishing Group UK
简介
In this article, we experimentally and numerically investigate a planar terahertz metamaterial (MM) geometry capable of exhibiting independently tunable multi-band electromagnetically induced transparency effect (EIT). The MM structure exhibits multi-band EIT effect due to the strong near field coupling between the bright mode of the cut-wire (CW) and dark modes of pair of asymmetric double C resonators (DCRs). The configuration allows us to independently tune the transparency windows which is challenging task in multiband EIT effect. The independent modulation is achieved by displacing one DCR with respect to the CW, while keeping the other asymmetric DCR fixed. We further examine steep dispersive behavior of the transmission spectra within the transparency windows and analyze slow light properties. A coupled harmonic oscillator based theoretical model is employed to elucidate as well as …
引用总数
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