双频段和多态极化转换使用特拉赫兹对称度破坏元设备
Yuwang Deng1, Qingli Zhou1, Xuteng Zhang1
1Key Laboratory of Terahertz Optoelectronics, Ministry of Education, and Beijing Advanced Innovation Center for Imaging Theory and Technology, Department of Physics, Capital Normal University, Beijing 100048, China.
Nanomaterials (Basel, Switzerland)
|November 10, 2023
概括
研究人员使用分环共振器开发了一种双频段的太赫兹半频器. 该设备将线性偏光转换为循环偏光,并为先进的太赫兹应用提供可重新配置的偏光切换.
科学领域:
- 光学和光子学 在光学和光子学.
- 超材料是指一种超材料.
- 特拉赫兹技术的技术.
背景情况:
- 太赫兹 (THz) 技术需要先进的光学组件来处理信号.
- 极化转换器对于控制THz应用中的光极化状态至关重要.
研究的目的:
- 为了展示一种基于太赫兹半端设备的新型双频带偏振转换器.
- 使用石墨烯集成实现可重新配置的极化切换.
主要方法:
- 数字模拟和实验制造一个半导体设备与分环共振器 (SRRs) 在正方形金属环内.
- 在x-和y-极化事件波下研究极化转换特性.
- 通过整合图案石墨烯并调整其费米能量来模拟可重新配置的切换.
主要成果:
- 设计的半端设备可以作为双频带偏振转换器.
- 在x-极化发射下,实现了从线性极化 (LP) 转换为左边循环极化 (LCP) 光.
- 在y极化发病率下,证明了依赖频率的转换为LCP和右边圆极化 (RCP) 状态.
- 在循环和线性极化状态之间模拟可重新配置的切换.
结论:
- 拟议的太赫兹半端设备提供双频带和多态极化控制.
- 这项工作为在太赫兹模式下开发紧型和多功能元件提供了一个有前途的解决方案.
- 该设备的可重新配置性为可调节的THz光学系统开辟了道路.
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