论文标题
基于绝热的遵循
In-plane terahertz surface plasmon-polaritons coupler based on adiabatic following
论文作者
论文摘要
我们提出了一个基于平面表面等离子体偏振子（SPP）波导的强大而宽带的Terahertz（THZ）耦合器，该波导是用量子相干控制进行的 - 刺激的拉曼绝热通道（stirap）。我们的耦合器由两个不对称的曲线瓦楞金属结构组成，充当输入和输出spps波导，一个直接的瓦楞金属结构作为中间spps波导。从理论和模拟结果中，我们证明了SPP可以有效地从输入到输出波导。我们的设备对几何参数的扰动非常强大，与此同时，它表现出宽带性能（从0.3 thz到0.8 THz），高传输速率超过70 $ \％$。面内THZ耦合器可以在很大程度上简化制造过程，这将为开发紧凑而健壮的集成THZ设备做出贡献，并在所有光学网络和THZ通信中促进未来的应用。
We propose a robust and broadband integrated terahertz (THz) coupler based on the in-plane surface plasmon polaritons (SPPs) waveguides, conducted with the quantum coherent control -- Stimulated Raman Adiabatic Passage (STIRAP). Our coupler consists of two asymmetric specific curved corrugated metallic structures working as the input and output SPPs waveguides, and one straight corrugated metallic structure functioning as the middle SPPs waveguide. From the theoretical and simulated results, we demonstrate that the SPPs can be efficiently transfered from the input to the output waveguides. Our device is robust against the perturbations of geometric parameters, and meanwhile it manifests broadband performance (from 0.3 THz to 0.8 THz) with the high transmission rate over 70$\%$. The in-plane THz coupler can largely simplify the fabrication process, which will make contribution to develop compact and robust integrated THz devices and promote the future applications in all optical network and THz communications.
