惠更斯超表面的设计与应用

2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS) Pub Date : 2015-12-03 DOI:10.1109/METAMATERIALS.2015.7342524

A. Epstein, J. Wong, G. Eleftheriades

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引用次数: 2

摘要

本文提出了一种基于等效原理的惠更斯超表面(HMS)的设计方法，该结构将电极化粒子和磁极化粒子结合在一起，根据其孔径定制场。这包括用于设计各种激发配置的超表面散热器的半解析光谱形式，以及用于实现它们的工程可打印亚波长元件的系统方法，这些方法共同扩展了HMS应用的潜在范围，大大超出了光束操作。以单进给腔激励HMS为例，优化后的孔径效率高达88%。

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Design and applications of Huygens metasurfaces

We present a complete methodology for the design of Huygens metasurfaces (HMS), structures combining electric and magnetic polarizable particles to tailor the fields on their aperture based on the equivalence principle. This includes a semianalytical spectral formalism to design metasurface radiators for a variety of excitation configurations, and a systematic method for engineering printable subwavelength elements to implement them, which, together, extend the potential range of HMS applications substantially beyond beam manipulation. As an example, a single-feed cavity-excited HMS is optimized to exhibit a high aperture efficiency of 88%.

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2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS)

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