Graphene-based reconfigurable multifunctional metasurface

被引：0
|
作者：
Zhang, Shuyue [1 ]
Zhang, Yahu [1 ]
Jin, Songling [2 ]
Hu, Dan [1 ]
机构：
[1] School of Mechanical and Electrical Engineering, Chuzhou University, Chuzhou,239000, China
[2] Anhui Ming Hui Electric Company Limited, Chuzhou,239000, China
来源：
Applied Optics | 2024年 / 63卷 / 28期
关键词：
We have proposed and investigated a concise design for a multifunctional metasurface operating within the terahertz frequency range. The metasurface’s structural layer comprises metallic resonant rings adorned with embedded graphene. Leveraging the electrically adjustable properties of graphene; we can actively manipulate the opening positions of the metal rings; thereby restructuring the metasurface to modulate circularly polarized waves and achieve specific functionalities. Of particular significance; we have introduced a straightforward operational method by strategically designing the placement of graphene embeddings; facilitating flexible adjustments to the phase gradient and paving the way towards achieving comprehensive phase coverage. This meticulously crafted metasurface realizes a multitude of THz control functionalities; including beam deflection; metalens focusing; and vortex beam generation. The findings from our study hold promise in offering invaluable insights for tailored applications in wave modulation; spanning terahertz imaging; detection; modulation; and sensing. © 2024 Optica Publishing Group. All rights; including for text and data mining (TDM); Artificial Intelligence (AI) training; and similar technologies; are reserved;
D O I：
10.1364/AO.529649
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页码：7418 / 7424
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