非常大规模的可重新配置的智能表面用于特拉赫兹和毫米波的动态控制
Yury Malevich1,2, M Said Ergoktas1,2,3, Gokhan Bakan1,2
1Department of Materials, University of Manchester, Manchester, UK.
Nature communications
|March 26, 2025
概括
我们开发了一个大规模的空间光调节器,使用石墨烯和薄膜晶体管用于特拉赫兹 (THz) 和毫米 (mm) 波. 这项技术可以实时控制THz波,用于先进的通信和成像应用.
科学领域:
- 光电学是指光电子产品.
- 材料科学 材料科学 材料科学
- 应用物理 应用物理
背景情况:
- 下一代通信和成像需要实时操纵太赫兹 (THz) 和毫米 (mm) 波.
- 现有的可重新配置的智能表面 (RIS) 是由于缺乏高效的THz电光材料和可扩展的半导体平台而受到限制.
研究的目的:
- 通过将石墨烯调节器与薄膜晶体管 (TFT) 技术合并来展示THz和毫米波的大规模空间光调节器.
- 为了使THz波反射和传输模式的电子可编程控制.
- 展示THz成像和通信中的潜在应用.
主要方法:
- 集成基于石墨烯的THz调制器与互补的金属氧化物半导体 (CMOS) 兼容薄膜晶体管 (TFT) 技术.
- 制造一个非常大规模的空间光调制器,拥有超过30万个个别可定位的次波长像素.
- 电子控制的光束转向和成像能力的演示.
主要成果:
- 实现了一个非常大规模的空间光调制器 (>300,000像素) 具有个别可定位的亚波长像素.
- 证明了电子可编程,大面积的THz波反射和传输,具有高均性和可重现性.
- 使用单像素毫米波摄像头成功拍摄金属物体,并证明了动态光束方向.
结论:
- 开发的石墨烯-TFT空间光调制器为操纵THz和毫米波提供了一个可扩展的平台.
- 这项技术为非侵入性THz成像和下一代THz通信系统提供了现实的途径.
- 展示的功能为需要实时控制THz波传播的先进应用铺平了道路.
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