广义超材料：超材料与常规材料的融合-中国材料进展

文章信息/Info

Title:: Generalized Metamaterials: Merging of Metamaterials and Conventional Materials

Author(s):: ZHOU Ji; School of Materials Science & Engineering, Tsinghua University, Beijing 100084,China

Keywords:: metamaterials; material design; functional materials; conventional materials; metaatom

摘要:: 超材料指的是通过人工结构实现超常特性的一大类新型材料，有望成为一系列颠覆性技术的源头。这类材料在基本结构、性能和实现方法上与常规材料完全不同，其各自的优势和劣势也泾渭分明——常规材料源于自然，易于获得而难于设计；超材料正好相反，易于设计，但在很多情况下却难于获得。作者课题组提出了通过超材料与常规材料融合发展兼具超材料和常规材料优势的新型功能材料的思想，在此基础上发展出了介质基电磁超材料、自然超常介质以及一些基于超材料设计思想的常规材料，从而形成了广义超材料的概念。这些研究工作拓展了超材料的范畴和其思想的指导意义，可为材料性能的改进与提高提供一种新的途径。

Abstract:: Metamaterials are a class of materials that achieve novel properties from artificial structures, and expected to be the source of a series of disruptive technologies. These artificial materials are completely different from conventional materials in their basic structures, properties and synthesis methods. The interface between them is clearly distinct——conventional materials come from nature, easy to obtain and difficult to design; metamaterials are the opposite, easy to design, but usually difficult to obtain. We proposed a strategy for development of new functional materials by merging of metamaterials and conventional materials. Based on this approach, we have developed dielectric electromagnetic metamaterials, natural abnormal electromagnetic media, and a series of conventional materials based on the idea of metamaterial design. A new concept, generalized metamaterials, is formed on this basis, to expand the scope and significance of metamaterials, and provide a new way for improving properties of materials.