Experimental observation of high-order topological corner states in 2D photonic Kagome lattice

被引：0
|
作者：
Zhirihin, D. [1 ,3 ]
Li, M. [1 ,2 ]
Filonov, D. [3 ]
Ni, X. [1 ,2 ]
Slobozhanyuk, A. [3 ]
Alu, A. [1 ,2 ,4 ]
Khanikaev, A. B. [1 ,2 ,4 ]
机构：
[1] CUNY City Coll, Grove Sch Engn, Dept Elect Engn, 160 Covent Ave, New York, NY 10031 USA
[2] CUNY, Grad Ctr, Phys Program, 365 5th Ave, New York, NY 10016 USA
[3] ITMO Univ, Dept Nanophoton & Metamat, 14 Birzhevaya St, St Petersburg 197101, Russia
[4] CUNY, Adv Sci Res Ctr, Photon Initiat, New York, NY 10031 USA
来源：
2019 THIRTEENTH INTERNATIONAL CONGRESS ON ARTIFICIAL MATERIALS FOR NOVEL WAVE PHENOMENA (METAMATERIALS)) | 2019年
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1109/metamaterials.2019.8900937
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper we experimentally realize high-order photonic topological insulator as a two-dimensional triangular distorted Kagome lattice that supports two types of topological states: 1D topological edge states and 0D high-order topological states localized at the corners. Using near-field scanning technique we demonstrate both topological edge states and topological corner state in microwave frequency spectrum. The experimental results are in perfect agreement with numerical simulations of finite structure.
引用
收藏
页码：492 / 494
页数：3
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