石墨烯时空重构智能表面 (GSRIS) 用于太赫兹极化状态操纵和全息成像
Tianyu Ma1, Liming Si1,2, Chenyang Dang1
1Beijing Key Laboratory of Millimeter Wave and Terahertz Technology, School of Integrated Circuits and Electronics, Beijing Institute of Technology Beijing 100081 People's Republic of China lms@bit.edu.cn.
Nanoscale advances
|February 10, 2025
概括
这项研究介绍了可重新配置的石墨烯智能表面,用于动态太赫兹波控制. 它可以实时操纵极化,多束生成和全息成像,用于先进的应用.
科学领域:
- 物理 物理学 物理
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
背景情况:
- 超材料和二维材料提供了对电磁波的动态控制.
- 太赫兹 (THz) 频率范围需要先进的波浪操纵技术.
研究的目的:
- 为了展示一个石墨烯时空重构智能表面 (GSRIS).
- 为了实现THz极化状态操纵,多束生成和全息成像.
主要方法:
- 利用电磁 (EM) 理论和全波电磁模拟.
- 通过时间变化的调制,动态控制的石墨烯的时空化学潜力.
- 调整直角偏振反射波的振幅和相位.
主要成果:
- 一个1.3 THz的GSRIS原型实现了极化状态操纵和在+1级波器上生成多束.
- 高质量的全息成像在-1级波器上得到了证明.
- 可以同时控制反射波的振幅和相位.
结论:
- GSRIS为设计THz电路和系统提供了一种新的方法.
- 潜在的应用包括THz成像,传感,光束控制和6G无线通信.
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