Observation of coupled-cavity structures in metamaterials
نویسندگان
چکیده
In this letter, we investigated the transmission properties of metamaterial based coupled-cavity structures. We first calculated the effective parameters of a split-ring resonator SRR and composite metamaterial CMM structures. Subsequently, we introduced coupled-cavity structures and presented the transmission spectrum of SRR and CMM based coupled-cavity structures. The splitting of eigenmodes was observed due to the interaction between the localized electromagnetic cavity modes. Finally, the dispersion relation and normalized group velocity of the coupled-cavity structures were calculated. The maximum group velocity was found to be 100 times smaller than the speed of light in vacuum. © 2008 American Institute of Physics. DOI: 10.1063/1.2988286
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تاریخ انتشار 2008