Investigation of out-of-plane symmetry-protected bound states in the continuum in terahertz metamaterials.

Long Yang, Chuanhe Dan, Shuang Liu, Xianpei Ren, Tao Xie, Qiang Li, Bin Zhang, Fang Ling

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Article in iScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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8 authors.

Long YangSchool of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.

Chuanhe DanSchool of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.

Shuang LiuSchool of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.

Xianpei RenSchool of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.

Tao XieSchool of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.

Qiang LiSchool of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.

Bin ZhangCollege of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China.

Fang LingSchool of Physics and Electronic Engineering, Sichuan University of Science & Engineering, Zigong 643000, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Currently, significant progress has been made in the development of in-plane symmetry-protected BIC sensors, but research on out-of-plane symmetry-protected BIC sensors has received much less attention. In this work, we introduce an approach where the tilt angle of rectangular holes is adjusted to break vertical mirror symmetry, successfully exciting the out-of-plane BIC mode. Our results show that increasing the tilt angle enhances electric field confinement at the BIC resonance, while promoting radiation leakage and facilitating stronger coupling to free space. Further analysis reveals that the gold coating significantly enhances the quality factor for tilt angles smaller than

Indexed as

applied sciencesdevicesengineeringphotonics

Identifiers

PMID42305632

DOI10.1016/j.isci.2026.116215

PMCPMC13266191

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