Higher-order valley vortices enabled by synchronized rotation in a photonic crystal

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成果类型：

期刊论文

作者：

Zhou, Rui;Lin, Hai;Wu, Yanjie;Li, Zhifeng;Yu, Zihao;...

通讯作者：

Lin, H

作者机构：

[Zhou, Rui; Yu, Zihao; Lin, Hai; Wu, Yanjie; Lin, H; Li, Zhifeng] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.

[Liu, Y.] Hubei Univ, Sch Phys & Elect Sci, Wuhan 430062, Peoples R China.

[Liu, Y.] Lanzhou Univ, Lanzhou Ctr Theoret Phys, Key Lab Theoret Phys Gansu Prov, Lanzhou 730000, Peoples R China.

[Xu, Dong-Hui] Chongqing Univ, Dept Phys, Chongqing 400044, Peoples R China.

通讯机构：

[Lin, H ] C

Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China.

语种：

英文

关键词：

ROTATION;topological;VORTEX

关键词(中文)：

光学期刊,光学期刊联盟,光学论文,光电资讯,光电社区,光学人物,光学专家,光学实验室,光学文献,编辑出版,光学权威,光学前沿,光学会议,微信智能应答服务,光学资源库,DOI代理注册,高功率激光,High Power Laser Science and Engineer,光子学研究,Photonics Research,中国光学快报,COL,Chinese Optics Letters,光学学报,中国激光,激光与光电子学进展

期刊：

光子学研究(英文)

ISSN：

2327-9125

年：

2022

卷：

期：

页码：

1244-1254

DOI：

10.1364/PRJ.452598

基金类别：

Young Scientists Fund#&#&#NSFC11804087#&#&#NSFC11704106 National Natural Science Foundation of China#&#&#NSFC12047501#&#&#NSFC12074108#&#&#NSFC41974195 Fundamental Research Funds for the Central Universities#&#&#CCNU19TS073#&#&#CCNU20GF004 Hongque Innovation Center#&#&#HQ202104001 Hubei University#&#&#030-090105#&#&#A201508 Science and Technology Department of Hubei Province#&#&#2018CFB148

机构署名：

本校为第一且通讯机构

院系归属：

物理科学与技术学院

摘要：

Synchronized rotation of unit cells in a periodic structure provides a novel design perspective for manipulation of band topology. We then design a two-dimensional version of higher-order topological insulator (HOTI) by such rotation in a triangular photonic lattice with C3 symmetry. This HOTI supports the hallmark zero-dimensional corner states and, simultaneously, the one-dimensional edge states. We also find that our photonic corner states carry chiral orbital angular momenta locked by valleys, whose wave functions are featured by the phase vortex (singularity) positioned at the maximal Wyc...

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Higher-order valley vortices enabled by synchronized rotation in a photonic crystal

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