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11 November 2014 Conductively coupled resonator scheme for dispersive transparency in metamaterials
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We present and demonstrate a new type of single resonator based planar metamaterial exhibiting electromagnetically induced transparency (EIT)-like transmission behavior. The novel design involves physically coupled split-ring resonator (SRR) and a dipolar ring as opposed to many inductively coupled resonators explored in the past. Both experiments and simulations reveal a dispersive transparency due to coupled resonances and the underlying mechanism. Further, the conductive and inductive coupling scenarios for this structure were compared where conductive coupling was found to coerce the direction of light induced currents and stronger in effect than inductive coupling. Resonance tuning is achieved by moving the bar coupling SRR and the ring. Hence, we show that conductive coupling has potential in tailoring coupled resonances of desired quality factor and fabricating metamaterials for enhanced sensing.
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Shuvan Prashant Turaga, Jianfeng Wu, Agnieszka Banas, Krzysztof Banas, and Andrew A. Bettiol "Conductively coupled resonator scheme for dispersive transparency in metamaterials", Proc. SPIE 9275, Infrared, Millimeter-Wave, and Terahertz Technologies III, 92750A (11 November 2014);

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