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Updated: Jun 13, 2025

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芯片集成的极化多重化元表面,用于同时生成多功能太赫兹旋

Qianyun Zhang¹, Guibin Li², Liang Wu¹

¹Key Laboratory of Opto-Electronics Information Technology (Tianjin University), School of Precision Instruments and Opto-Electronics Engineering, Tianjin University, No. 92 WeiJin Road, Tianjin, 300072, China.

Nanophotonics (Berlin, Germany)

|June 11, 2025

概括

这项研究引入了一种全介电超表面,用于产生太赫兹旋束. 这一突破使得四个直角偏振束能够同时产生,从而增强了电信数据容量.

科学领域:

光子学和元材料研究
特拉赫兹技术的技术.
光学通信是指光学通信.

背景情况:

带有轨道角动量 (OAM) 的太赫兹旋转束对于促进电信数据传输至关重要.
在单个元表面上同时产生直角极化状态 (线性和圆形) 仍然是一个重大挑战.

研究的目的:

提出并演示芯片集成的全介电超表面,用于同时生成四通道直角偏振束,以太赫兹模式.
为了实现对极化和拓收费的独立控制,以提高信息承载能力.

主要方法:

使用传播相策略的极化多重化元表面的设计.
纳入偏振维护和偏振转换元原子.
双断层元原子阵列的排列,以诱导用于直角偏振的定制附加相.

主要成果:

同时生成四通道直角偏振束,在x和y偏振落灯下具有各种拓电荷.
展示对极化和拓电荷的同时控制.
实验结果显示与模拟的良好一致.

结论:

拟议的超表面方法成功地为多样化的极化综合产生了完整的极化基.
这项技术为信息编码提供了更高的自由度,为大容量太赫兹通信铺平了道路.

关键词:

metasurface 地表的表面是什么两极分化多重复杂化太赫兹 (Terahertz) 是一个频率.的束束是的束束.

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