摘要
受凝聚态拓扑绝缘体研究的启发,整数量子霍尔效应、量子自旋霍尔效应、拓扑半金属、高阶拓扑绝缘体等拓扑物理相继在光学系统中实现。光子系统因能带干净,样品设计简单且制作精度高等优势,逐渐成为研究物理拓扑模型和新型拓扑效应的重要平台。拓扑光子学提供了全新的调控光场和操控光子的方法,其拓扑保护的边界态可实现光子对材料杂质缺陷免疫的传播,这种传统光子系统不具备的理想的传输态有望驱动新型光学集成器件的变革。本文将从二维光学体系出发,简要介绍几种典型的光拓扑绝缘体的最新进展,例如光整数量子霍尔效应、光量子自旋霍尔效应、光Floquet拓扑绝缘体、拓扑安德森绝缘体和高阶拓扑绝缘体。文中重点介绍了上述几种光拓扑绝缘体的拓扑模型及其新型的拓扑现象,并在最后展望了新型光学拓扑效应及其在光学器件中的应用前景。
Inspired by the exciting discovery of topological insulators in condensed-state physics,some topological physics phenomena,such as integer quantum Hall effect,quantum spin Hall effect,topological semimetals and higher order topological insulators,have successively realized in photonic system.Thanks to the clean energy band,simple design and accurate production of samples,the optical system has gradually become an important platform for studying physical topological models and novel topological phenomena.Topological photonics provides new methods to manipulate light fields and photons.The topological protected edge states can realize the propagation of photons which immune to material defects and impurity.Such ideal transport states are unprecedented in traditional optics,which may lead to radical changes in novel integrated optical devices.In this review,based on the two-dimensional optical system,we briefly introduce the exciting developments of topological photonics,such as photonic integer quantum Hall effect,photonic quantum spin Hall effect,photonic Floquet topological insulators,topological Anderson insulators and photonic higher order topological insulators.We focus on the topological insulators mentioned above and its topological model and novel topological phenomena.Finally,we conclude with the novel topological effects in optics and their applications in novel optical device.
作者
刘慧
王好南
谢博阳
程化
田建国
陈树琪
LIU Hui;WANG Hao-nan;XIE Bo-yang;CHENG Hua;TIAN Jian-guo;CHEN Shu-qi(The Key Laboratory of Weak Light Nonlinear Photonics,Ministry of Education,School of Physics and TEDA Institute of Applied Physics,Nankai University,Tianjin 300071,China;The Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Light Manipulations and Applications,Shandong Normal University,Jinan 250358,China)
出处
《中国光学》
EI
CAS
CSCD
北大核心
2021年第4期935-954,共20页
Chinese Optics
基金
国家重点研发计划(No.2016YFA0301102,No.2017YFA0303800)
国家杰出青年科学基金(No.11925403)
国家自然科学基金(No.11974193,No.91856101,No.11774186)
天津市杰出青年科学基金(No.18JCJQJC45700)。
关键词
光拓扑绝缘体
光整数量子霍尔效应
光量子自旋霍尔效应
光Floquet拓扑绝缘体
拓扑安德森绝缘体
高阶拓扑绝缘体
拓扑保护边缘态
photonic topological insulators
photonic integer quantum Hall effect
photonic quantum spin Hall effect
photonic Floquet topological insulators
topological Anderson insulators
photonic higher order topological insulators
topological protected edge state
