文章信息/Info

Title:

Progress of Metamaterial Cloaking in Multiple Physical Fields

作者:

李揚1; 2; 劉傳寶1; 2; 周濟3; 喬利杰1; 2; 白洋1; 2

1.北京科技大學(xué)新材料技術(shù)研究院，北京 100083

2.北京科技大學(xué) 北京市材料基因工程高精尖中心，北京 100083

3.清華大學(xué)材料學(xué)院 新型陶瓷與精細工藝國家重點實驗室，北京100084

Author(s):

LI Yang1; 2;  LIU Chuanbao1; 2;  ZHOU Ji3;  QIAO Lijie1; 2;  BAI Yang1; 2

1.Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China

2.Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China

3.State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering,Tsinghua University, Beijing 100084, China

關(guān)鍵詞:

超材料; 隱身衣; 變換光學(xué); 波動場; 拉普拉斯場; 化學(xué)梯度場

Keywords:

metamaterials;  cloaking;  transformation optics;  wave field;  laplace field;  chemical gradient field

DOI:

10.7502/j.issn.1674-3962.2019.01.04

文獻標志碼:

A

摘要:

超材料指具有天然材料所不具備的超常物理性質(zhì)的人工復(fù)合結(jié)構(gòu)或復(fù)合材料，其物理性質(zhì)不取決于其組成材料本身，而是由單元結(jié)構(gòu)所決定。超材料對物理場具有超強操控能力，因此可以突破傳統(tǒng)材料的物理極限，實現(xiàn)諸多新穎功能和重要應(yīng)用。變換光學(xué)理論的提出及其在完美電磁隱身衣中的成功應(yīng)用，大大拓展了超材料的研究范圍，而且將超材料研究由電磁場調(diào)控推廣到聲、力、熱、化學(xué)以及靜電/靜磁等其他多物理場，發(fā)展出一系列非電磁超材料，而隱身也作為最典型的物理場調(diào)控類型，受到廣泛的研究。這些物理場往往具有相似的理論表達形式，但物理細節(jié)又各有特點，近些年超材料隱身用于多物理場的研究已經(jīng)形成了一系列富有特色的研究方向。簡要介紹了超材料的發(fā)展，闡述了超材料隱身的幾種典型方法，還對超材料隱身在多物理場、尤其是非電磁物理場中的研究進展進行了綜述介紹。

Abstract:

A metamaterial is a material engineered to have a property that is not found in nature. They are made from assemblies of multiple unit cells fashioned from composite materials, whose extraordinary properties are determined by the artificial structure rather than the materials they compose of. Metamaterials have powerful ability to flexibly and efficiently manipulate physical fields, so that they can break through the property limitation of conventional materials to realize many novel functions and important applications. The emergence of transformation optics and its successful application in perfect electromagnetic cloak not only broaden the scope of metamaterials�� researches greatly, but also expand the physical field that metamaterials work in from electromagnetic field to other physical fields, such as acoustic, mechanic, thermal, chemical and static electric/magnetic fields, so that metamaterials working in non�瞖lectromagnetic fields were developed rapidly. As a typical manipulation of physical fields, invisible cloak has drawn great attention of researchers. These physical fields have similar governing formula in the meantime vary in details, so that a series of interesting and distinctive research fields were developed about the invisible cloaks for multiple physical fields by metamaterials. In this review, we will briefly introduce the development of metamaterials, illustrate typical approaches for the design of invisible cloaks, and review strategies and applications of various invisible cloaks in different physical field, especially non�瞖lectromagnetic fields.