论文标题
光子拓扑绝缘子的微波应用
Microwave Applications of Photonic Topological Insulators
论文作者
论文摘要
该观点研究了光子拓扑绝缘子（PTI）在微波域中的新兴应用。光的拓扑保护的引入通过在存在锋利的弯曲和强大的结构缺陷的情况下证明了无反向散射波导的传统观点。伪赋的光自由程度使具有有用功能的前所未有的拓扑光子设备发明了发明。我们的目的是简要介绍微波PTI演示中的最新发展。我们清楚地比较了不同的PTI实现，总结了引起拓扑保护的关键特征，并与现有的微波设备技术相比，对PTI技术的优势和缺点进行了讨论。我们以前瞻性的观点来结束，即如何最好地利用该技术的优势。
This Perspective examines the emerging applications of photonic topological insulators (PTIs) in the microwave domain. The introduction of topological protection of light has revolutionized the traditional perspective of wave propagation through the demonstration of backscatter-free waveguides in the presence of sharp bending and strong structural defects. The pseudospin degree of freedom of light enables the invention of unprecedented topological photonic devices with useful functionalities. Our aim is to present a brief introduction of recent developments in microwave PTI demonstrations. We give a clear comparison of different PTI realizations, summarize the key features giving rise to topological protection, and present a discussion of advantages and disadvantages of PTI technology compared to existing microwave device technology. We conclude with forward-looking perspectives of how the advantages of this technology can best be exploited.
