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在高度失焦的THz光束中衍射效应

Felix Gorka, Enrique Castro-Camus, Daniel M Mittleman

|December 19, 2025

概括

定向的太赫兹光束对于通信至关重要,因为它的损失更高,衍射更小. 通过阻塞进行光束传输的测量与弗雷内尔衍射理论进行了比较,以帮助超宽带技术的发展.

科学领域:

物理物理学物理
电气工程电气工程
光学工程是指光学工程.

背景情况:

太赫兹 (THz) 通信需要定向光束来克服显著的传输损失.
较短的THz波长导致较少的衍射,影响信号通过障碍物传播.

研究的目的:

测量与阻塞相互作用的适度分离的THz光束的频率依赖的传输损失.
将实验数据与基于弗雷内尔衍射理论的准光学模型进行比较.

主要方法:

测量带有厘米尺度腰的光束的传输损失.
弗雷内尔衍射理论的应用,用于光束阻塞相互作用的准光学处理.

主要成果:

对遇到各种阻塞的THz光束的量化频率依赖的传输损失.
验证了准光学模型在预测光束与障碍物的相互作用方面的准确性.

结论:

实验数据与THz束相互作用的弗雷内尔衍射预测一致.
这些发现对于设计未来100 GHz以上超宽带通信系统至关重要.

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