具有动态可重构太赫兹完美吸收的双层石墨烯超表面

IF 3.1 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Current Applied Physics Pub Date : 2025-10-02 DOI:10.1016/j.cap.2025.10.001

Zhiyong Chen , Mengsi Liu , Shubo Cheng , Junqiao Wang , Yougen Yi , Boxun Li , Chaojun Tang , Fan Gao

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引用次数: 0

摘要

基于双层石墨烯超材料的可调谐太赫兹完美吸收器通过将方形阵列-盒复合谐振腔单元结构与动态费米能级控制相结合的创新设计，实现了突破性的性能。通过调节石墨烯费米能级（0-0.5 eV），吸收峰可以从单宽峰动态切换到双峰u型凹陷，覆盖3.99-8.91太赫兹的调谐范围。优化后，目标频段的平均吸收率达到97%。该结构通过局域场增强和阻抗匹配的协同机制，首次实现了宽带宽内（从宽峰到u型峰）吸收峰形状的主动重构，为太赫兹隐身通信和高灵敏度传感提供了新的解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Bilayer graphene metasurface with dynamically reconfigurable terahertz perfect absorption

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Bilayer graphene metasurface with dynamically reconfigurable terahertz perfect absorption

The tunable terahertz perfect absorber based on a bilayer graphene metamaterial achieves breakthrough performance through an innovative design that combines a square array-box composite resonant cavity unit structure with dynamic Fermi level control. By adjusting the graphene Fermi level (0–0.5 eV), the absorption peak can dynamically switch from a single wide peak to a double-peak U-shaped depression, covering a tuning range of 3.99–8.91 THz. After optimization, the average absorption rate in the target frequency band reaches 97 %. This structure, through the synergistic mechanism of localized field enhancement and impedance matching, achieves the first active reconstruction of the absorption peak shape within a wide bandwidth (from a wide peak to a U-shaped peak), providing a new solution for terahertz stealth communication and high-sensitivity sensing.

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来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.