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具有可在双窄带吸收和宽带吸收之间切换功能的双功能太赫兹元设备

Weijun Zhou¹, Xuefeng Qin¹, Youqi Zhang¹

¹School of Science, Jiangnan University, Wuxi, 214122, China. wangbenxin@jiangnan.edu.cn.

|October 7, 2025

概括

这项研究介绍了一种具有双功能的吸收能力的新型可调节的太赫兹元设备. 该设备使用金和二氧化,为先进的光学应用提供动态控制.

科学领域:

光学和光子学在光学和光子学.
材料科学材料科学材料科学
电磁学电磁学电磁学电磁学

背景情况:

基于元材料的光学设备具有显著的应用潜力,但在多功能集成和动态可调性方面面临挑战.
开发具有可适应功能和精确控制的设备对于推进太赫兹技术至关重要.

研究的目的:

提出和演示一个可调节的太赫兹元设备,具有双重功能吸收能力.
使用相位转换实现双窄带和宽带吸收模式的独立调制.

主要方法:

使用金和二氧化 (VO2) 表面图案结构用于元设备制造.
研究了电磁场偏振切换,以实现不同的吸收模式.
通过阻抗匹配理论和表面电场分布分析了物理机制.

主要成果:

实现了一种双重功能元设备,能够同时进行双重窄带和宽带的吸收.
通过VO2相转换证明了两种模式的吸收率的独立调制.
确认了两种操作模式的大角公差.

结论:

拟议的元设备集成了多个功能 (双窄带和宽带吸收) 并提供动态调整性.
该设备表现出结构简单性和紧,集成的太赫兹元件的实际潜力.
双窄带吸收模式对传感应用非常有希望.

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