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Fiber-Drawn Metamaterial for THz Waveguiding and Imaging

机译:用于太赫兹波导和成像的光纤超材料

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摘要

In this paper, we review the work of our group in fabricating metamaterials for terahertz (THz) applications by fiber drawing. We discuss the fabrication technique and the structures that can be obtained before focusing on two particular applications of terahertz metamaterials, i.e., waveguiding and sub-diffraction imaging. We show the experimental demonstration of THz radiation guidance through hollow core waveguides with metamaterial cladding, where substantial improvements were realized compared to conventional hollow core waveguides, such as reduction of size, greater flexibility, increased single-mode operating regime, and guiding due to magnetic and electric resonances. We also report recent and new experimental work on near- and far-field THz imaging using wire array metamaterials that are capable of resolving features as small as λ/28.
机译:在本文中,我们回顾了我们小组在通过纤维拉制制造太赫兹(THz)应用的超材料方面的工作。在讨论太赫兹超材料的两种特殊应用(即波导和亚衍射成像)之前,我们讨论了制造技术和可获得的结构。我们展示了通过超材料包覆的空心波导进行太赫兹辐射导引的实验演示,与常规空心波导相比,它实现了显着的改进,例如尺寸减小,灵活性更大,单模工作方式增加以及磁导和电共振。我们还报告了最近和新的实验工作,使用能够解决小到λ/ 28的特征的线阵列超材料,对近场和远场THz成像进行了研究。

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