Dependence of the distance between cut-wire-pair layers on resonance frequencies

作者：Lam V D; Kim J B; Tung N T; Lee S J; Lee Y P^*; Rhee J Y

来源：Optics Express, 2008, 16(8): 5934-5941.

DOI：10.1364/OE.16.005934

We studied both experimentally and theoretically the influence of the distance between adjacent cut-wire-pair layers on the magnetic and the electric resonances in the microwave-frequency regime. Besides the dependence on the separation between cut-wire pairs, along the electric-field direction, the electric resonance strongly depends on the distance between cut-wire-pair layers, while the magnetic resonance is almost unchanged. This contrast can be understood by the difference in the distribution of induced-charge density and in the direction of the induced current between the electric and magnetic resonances. A simple model is proposed to simulate our experimental results and the simulation results are in good agreement with the experiment. This result provides important information in obtaining left-handed behavior when the cut-wire pairs are combined with the continuous wire.

• 出版日期2008-4-14