超构材料中的光学拓扑态  

Photonic topological states in metamaterials

作　　者：谭为[1] 陈鸿[2] 

机构地区：[1]中国工程物理研究院微系统与太赫兹研究中心,成都610200 [2]同济大学物理科学与工程学院,上海200092

出　　处：《物理》2017年第1期29-37,共9页Physics

基　　金：国家自然科学基金(批准号:11234010);国家重点研发计划(批准号:2016YFA0301101)资助项目

摘　　要：拓扑态是当前凝聚态物理中的研究热点,是一种由于整体拓扑效应所导致的全新电子态。近年来,大量理论和实验工作表明,由于拓扑态本质上是一种单粒子波动行为,因此可以在光学体系中找到类比,于是开启了光学拓扑态这一新兴研究方向。光子晶体、光学耦合腔阵列等体系成为重要的拓扑态模拟平台。文章主要以一维Dirac方程体系和二维p波超导体系为例,介绍超构材料(Metamaterials)中的光学拓扑态特性,包括能带翻转、边界态、畴壁、涡旋零能态等典型拓扑行为。The study of topological states is a hot topic in condensed matter physics as it has revealed several new phases of quantum matter. Recently, many theoretical and experimental studies have demonstrated photonic analogues of topological states, based on the fact that these states are a manifestation of one-particle wave behavior, and this has further stimulated research on photonic topological states. Photonic crystals and coupled-resonator arrays provide a flexible platform for simulating topological phases. The purpose of this review is to give a brief introduc- tion to photonic simulations of topological phases in one-dimensional Dirac systems and two-di- mensional p-wave superconductors through the design of specific metamatefials, involving band inversion, edge states, domain walls, and zero-energy mode at a vortex, and so forth.

关 键 词：拓扑态 超构材料 能带翻转 边界态 零能态 

分 类 号：O469[理学—凝聚态物理]