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arXiv 1607.02697physics.optics
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基于半导体的鲁棒拓扑太赫兹电路

Robust Topological Terahertz Circuits using Semiconductors

Babak Bahari, Ricardo Tellez-Limon, Boubacar Kanté

摘要:

基于拓扑绝缘体的器件可以在材料表面传输电子/光子,即使在存在障碍物的情况下也没有任何背反射。拓扑性质最近已经研究了使用非互易材料,如陀螺或使用双各向异性。然而,这些效应通常在光频率下饱和,限制了我们缩小器件的能力。为了实现拓扑器件,我们在本文中介绍的太赫兹范围内,我们表明,半导体可以利用通过它们的回旋共振结合小磁场。提出了拓扑可调谐功分器和拓扑环行器等新型太赫兹工作器件。这项工作为设计高功能的太赫兹集成器件和电路开辟了新的前景。

英文摘要:

Topological Insulator-based devices can transport electrons/photons at the surfaces of materials without any back reflections, even in the presence of obstacles. Topological properties have recently been studied using non-reciprocal materials such as gyromagnetics or using bianisotropy. However, these effects usually saturate at optical frequencies and limit our ability to scale down devices. In order to implement topological devices that we introduce in this paper for the terahertz range, we show that semiconductors can be utilized via their cyclotron resonance in combination with small magnetic fields. We propose novel terahertz operating devices such as the topological tunable power splitter and the topological circulator. This work opens new perspectives in the design of terahertz integrated devices and circuits with high functionality.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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