摘要
We demonstrate that a two-dimensional isotropic left-handed materials (LHMs) can be built based on unitary dendritic structure units. Utilizing parameter design, we theoretically deduce a resonant condition in unitary dendritic structure unit, which provided an overlapping negative permittivity and negative permeability response over a frequency band. Employing microwave transmission and prism refractive index experiments, the medium with dendritic structure exhibits a distinct left-handed effect. The proposed implementation of the dendritic structure opens the possibility of realizing integrative isotropic LHMs, especially for simple chemical prepared infrared or visible frequency LHMs.
源语言 | 英语 |
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文章编号 | 181908 |
期刊 | Applied Physics Letters |
卷 | 91 |
期 | 18 |
DOI | |
出版状态 | 已出版 - 2007 |