论文标题
三维THZ电路中的准静态和传播模式
Quasi-static and propagating modes in three-dimensional THz circuits
论文作者
论文摘要
我们提供了THZ频率范围内三维超材料谐振器的电磁模式的分析。结构的基本共振由分析电路模型充分描述，该模型不仅重现了谐振频率，而且还重现了超材料与入射THZ辐射的耦合。我们还证明了传播效应的贡献，并展示了如何通过设计减少它们。在优化的设计中，电场能量被集中到超波长度（$λ$/100）的电容器中，我们根据集体电子激发在二维电子气体中插入半导体吸收器。优化的电场限制可以通过观察到超强的光耦合方式来证明，并为这些结构打开了许多可能的应用，用于检测器，调节器和THZ辐射的来源。
We provide an analysis of the electromagnetic modes of three-dimensional metamaterial resonators in the THz frequency range. The fundamental resonance of the structures is fully described by an analytical circuit model, which not only reproduces the resonant frequencies but also the coupling of the metamaterial with an incident THz radiation. We also evidence the contribution of the propagation effects, and show how they can be reduced by design. In the optimized design the electric field energy is lumped into ultra-subwavelength ($λ$/100) capacitors, where we insert semiconductor absorber based on the collective electronic excitation in a two dimensional electron gas. The optimized electric field confinement is evidenced by the observation of the ultra-strong light-matter coupling regime, and opens many possible applications for these structures for detectors, modulators and sources of THz radiation.
