一个电气/热双控制的四功能的特拉赫兹超表面吸收器
Zhipeng Ding1, Wei Su1, Lipengan Ye1
1College of Science, Hohai University, Nanjing, 211100, China. opticsu@hhu.edu.cn.
Physical chemistry chemical physics : PCCP
|June 7, 2023
概括
本研究介绍了一种用于太赫兹 (THz) 应用的四功能超表面吸收器 (QMA). 它通过电气和热控制提供可调节的窄带和宽带吸收,使多功能功能成为可能.
科学领域:
- 超材料和纳米光子学
- 特拉赫兹 (THz) 技术技术
- 先进的材料先进的材料
背景情况:
- 基于石墨烯的可调节的太赫兹 (THz) 吸收器对于各种应用至关重要.
- 改善各种场景的吸收器功能仍然是关键的研究挑战.
- 超表面为先进的电磁波操纵提供了有希望的平台.
研究的目的:
- 为THz区域推出一个创新的四功能超表面吸收器 (QMA).
- 为了能够在窄带和宽带吸收模式之间切换.
- 通过双重电热操纵实现可调节的吸收.
主要方法:
- 用电来操纵石墨烯的化学潜力,以切换吸收模式.
- 对二氧化瓦纳 (VO2) 阶段过渡进行热处理,用于调频.
- 对表面等离子体极子子 (SPP) 共振和材料相变的分析.
主要成果:
- 使用电气控制,在窄带吸收模式 (NAM) 和宽带吸收模式 (BAM) 之间进行过关.
- 通过热控制实现了低频吸收模式 (LAM) 和高频吸收模式 (HAM) 之间的切换.
- 在所有模式下,已确认极化不敏感性和在大角度发射下强大的性能.
结论:
- 拟议的QMA具有可调节的吸收特性,具有四重功能.
- 双电热控制机制提供了多功能吸收能力.
- 该QMA显示了隐形,传感,切换和过等应用的巨大潜力.
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