Chiral metamaterials: enhancement and control of optical activity and circular dichroism.
Chiral metamaterials: enhancement and control of optical activity and circular dichroism.
复制标题
手性超材料：增强和控制光学活性和圆形二分性能。
DOI：
10.1186/s40580-015-0058-2
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发表时间：
2015
期刊：
影响因子：
11.7
通讯作者：
Hess O
中科院分区：
文献类型：
--
作者：
Oh SS;Hess O
由于超材料设计技术的最新发展以及对复合金属结构中光与物质相互作用的更深入理解，对介质的旋光性和椭圆率的控制已引起了相当大的关注。实际上，最近提出的超原子设计已使具有前所未有的手性光学特性（例如强旋光性、宽带旋光性和无弥散零椭圆率）的材料得以实现。将手性超材料与非线性材料相结合，为非线性手性领域开辟了新的可能性，并为可切换手性器件提供了基础。此外，手性与双曲性可用于实现新的令人兴奋的材料，例如光子拓扑绝缘体。在这篇综述中，我们将概述手性超材料的基本原理，并报告在为可切换手性超材料的有前景的应用提供基础方面的最新进展。
The control of the optical activity and ellipticity of a medium has drawn considerable attention due to the recent developments in metamaterial design techniques and a deeper understanding of the light matter interaction in composite metallic structures. Indeed, recently proposed designs of metaatoms have enabled the realisation of materials with unprecedented chiral optical properties e.g. strong optical activity, broadband optical activity, and nondispersive zero ellipticity. Combining chiral metamaterials with nonlinear materials has opened up new possibilities in the field of nonlinear chirality as well as provided the foundation for switchable chiral devices. Furthermore, chirality together with hyperbolicity can be used to realise new exciting materials such as photonic topological insulators. In this review, we will outline the fundamental principles of chiral metamaterials and report on recent progress in providing the foundations for promising applications of switchable chiral metamaterials.