期刊
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS
卷 9, 期 9, 页码 S361-S365出版社
IOP PUBLISHING LTD
DOI: 10.1088/1464-4258/9/9/S13
关键词
metamaterial; negative index; split-ring resonator; negative refraction
类别
We report an experimental and numerical analysis of a planar metamaterial designed for normal-to-plane propagation, and operating at microwave frequencies. The metamaterial consists of cutwire and wire patterns, which are arranged periodically on both sides of a dielectric layer, in the form of a bilayer. The left-handed transmission band of the metamaterial is demonstrated experimentally. The effective index of refraction retrieved from the S parameters is found to be negative within this transmission band. An independent negative refraction experiment supports the existence of the negative index of refraction for the metamaterial.
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