Topologically-protected dual-parameter Valley Hall photonic crystal sensor

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成果类型：

期刊论文

作者：

Sheng, Guo;She, Kang;Shan, Zhengping;Liu, Exian;Peng, Yuchen;...

通讯作者：

Exian Liu

作者机构：

[Sheng, Guo; She, Kang; Shan, Zhengping; Liu, Exian] College of Computer and Information Engineering, Central South University of Forestry and Technology, Changsha 410004, China

[Peng, Yuchen] School of Engineering, Westlake University, Hangzhou, Zhejiang 310024, China

[Liu, Jianjun] The Key Laboratory for Micro/Nano-Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha 410082, China

通讯机构：

[Exian Liu] C

College of Computer and Information Engineering, Central South University of Forestry and Technology, Changsha 410004, China

语种：

英文

关键词：

Light propagation;Photonic crystal sensors;Photonic crystals;Refractive index;Sensor performance;Temperature sensors

期刊：

Optics Express

ISSN：

1094-4087

年：

2025

卷：

期：

页码：

25558-25569

DOI：

10.1364/OE.562316

基金类别：

Natural Science Foundation of Hunan Province (2023JJ41060); The Education Department Key Program of Hunan Province (22A0190); Changsha Municipal Natural Science Foundation (kq2202295).

机构署名：

本校为第一且通讯机构

院系归属：

计算机与信息工程学院

摘要：

Topological photonic crystals (TPCs) are considered excellent optical sensor platform due to the robustness of light propagation, immunity to interference, and ease of integration. This paper theoretically proposes a topological valley photonic crystal (VPC) sensor based on second-order corner states and, to our knowledge, realizes for the first time topologically protected dual-parameter detection for refractive index (RI) and temperature. Two highly localized opological corner states (TCSs) are generated by splicing two types of VPCs with bro...

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Topologically-protected dual-parameter Valley Hall photonic crystal sensor

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