Electrically tunable dual-band extraordinary transmission with a graphene hybrid metasurface

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-04-01 DOI:10.1016/j.optmat.2025.117014

Yujing Zhang, Jiameng Nan, Weiqi Cai, Jing Xu, Hongkui Shi, Fuli Zhang, Yuancheng Fan

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引用次数: 0

Abstract

Metasurface is a kind artificial composite composed of subwavelength structures arranged for novel optical properties. Here we propose and demonstrate a metasurface made of hybrid metal-graphene structure for electrically tunable dual-band electromagnetic extraordinary optical transmission (EOT). Considering the tunability of the conductivity of graphene with applied voltage as well as the freely designed EOT operating in independent frequency bands, the transmission of the dual-band EOT can be efficiently controlled by tuning the biasing voltage on the graphene layer. The electrical tunability of the dual-band EOT behavior is confirmed by full-wave simulation and experimental characterization. The measured results show that the designed metasurface achieves 57.6 % and 32.2 % transmittance at 9.49 GHz and 11.47 GHz, respectively, and 45.7 % and 28 % modulation are achieved when the graphene is biased. The proposed hybrid metasurface enriches the modulation mechanism of electromagnetic EOT behavior through tunable properties of graphene and has certain application prospects in sensors and filter devices.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.