Electrically resonant terahertz metamaterials: Theoretical and experimental investigations
Electrically resonant terahertz metamaterials: Theoretical and experimental investigations
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DOI：
10.1103/physrevb.75.041102
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发表时间：
2007-01-01
影响因子：
3.7
通讯作者：
Averitt, R. D.
中科院分区：
文献类型：
--
作者：
Padilla, W. J.;Aronsson, M. T.;Averitt, R. D.
我们提出了一类人工材料，表现出定制的电磁辐射的电气组件的响应。这些电超材料的理论，计算和实验研究，使用太赫兹时域光谱。这些结构显示出包括负介电常数ω（1）（ω）< 0的区域的谐振响应，范围从类似于500 GHz到1 THz。传统的电介质，如分布式导线，很难纳入超材料。相比之下，这些局部结构将简化未来超材料的构造，包括那些具有负折射率的超材料。由于这些结构以简单的方式推广到三维，它们将显着提高功能太赫兹器件的设计和制造。
We present a class of artificial materials that exhibit a tailored response to the electrical component of electromagnetic radiation. These electric metamaterials are investigated theoretically, computationally, and experimentally using terahertz time-domain spectroscopy. These structures display a resonant response including regions of negative permittivity epsilon(1)(omega)< 0 ranging from similar to 500 GHz to 1 THz. Conventional electric media such as distributed wires are difficult to incorporate into metamaterials. In contrast, these localized structures will simplify the construction of future metamaterials, including those with negative index of refraction. As these structures generalize to three dimensions in a straightforward manner, they will significantly enhance the design and fabrication of functional terahertz devices.