Coupling effect between two adjacent chiral structure layers.
Coupling effect between two adjacent chiral structure layers.
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DOI：
10.1364/oe.18.005375
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发表时间：
2010-03
期刊：
影响因子：
3.8
通讯作者：
Zhaofeng Li;H. Caglayan;E. Colak;Jiangfeng Zhou;C. Soukoulis;E. Ozbay
中科院分区：
文献类型：
--
作者：
Zhaofeng Li;H. Caglayan;E. Colak;Jiangfeng Zhou;C. Soukoulis;E. Ozbay
A pair of mutually twisted metallic cross-wires can produce giant optical activity. When this single chiral layer is stacked layer by layer in order to build a thick chiral metamaterial, strong coupling effects are found between the two adjacent chiral layers. We studied these coupling effects numerically and experimentally. The results show that the existing coupling between chiral layers can make the chiral properties of a two-layered chiral metamaterial different from the constituting single chiral layers. It is explained qualitatively that the coupling effects are generated from the coupling of metallic cross-wires belonging to different chiral layers. Our experimental results are in good agreement with the simulation results.
