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篇目详细内容 |
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【篇名】 |
Dynamic study and applications of metamaterial systems |
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【刊名】 |
Frontiers of Physics (Formerly known as Frontiers of Physics in China) |
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【刊名缩写】 |
Front. Phys |
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【ISSN】 |
2095-0462 |
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【EISSN】 |
2095-0470 |
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【DOI】 |
10.1007/s11467-010-0111-x |
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【出版社】 |
Higher Education Press and Springer-Verlag Berlin
Heidelberg |
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【出版年】 |
2011 |
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【卷期】 |
6
卷1期 |
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【页码】 |
74-95
页,共
22
页 |
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【作者】 |
Xun-ya
JIANG(蒋寻涯);
Zheng LIU(刘征);
Zi-xian LIANG(梁子贤);
Pei-jun YAO(姚培军);
Xu-lin LIN(林旭林);
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【关键词】 |
metamaterial; dynamic; dispersion |
【摘要】 |
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We investigate the dynamic characteristics of metamaterial systems, such as the temporal coherence gain of the superlens, the causality limitation on the ideal cloaking systems, the relaxation process and essential elements in the dispersive cloaking systems, and the extending of the working frequency range of cloaking systems. The key point of our study is the physical dispersive properties of metamaterials, which are well-known to be intrinsically strongly dispersive. With physical dispersion, new physical pictures can be obtained for the waves propagating inside metamaterial, such as the “group retarded time” for waves inside the superlens and cloak, the causality limitation on real metamaterial systems, and the essential elements for design optimization. Therefore, we believe the dynamic study of metamaterials will be an important direction for further research. All theoretical derivations and conclusions are demonstrated by powerful finite-difference time-domain simulations. |
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