拓扑光子学是光学领域一个重要的新兴研究方向，它的奇异光学响应特性颠覆了人们对光传播的理解，为人工操控光的传播提供了一种全新方法。Floquet拓扑光子绝缘体是拓扑光子学的一个重要分支，它利用周期性的驱动来探索物质的相变过程，发现了很多违反直觉的新奇物理现象。本文综述了近十年来Floquet拓扑光子绝缘体的主要研究进展。根据实现方式将其分为基于时间调制、基于空间调制、基于耦合谐振调制的三个大类进行详细论述。对于每一类Floquet拓扑光子绝缘体，从基础理论和物理实现平台两个方面论述了Floquet拓扑光子绝缘体的独特光学特性和奇异物理现象，并讨论了其潜在的应用前景。最后，总结了该领域当前面临的主要挑战，并对Floquet拓扑光子绝缘体的未来研究方向进行了展望。

Plasmonics could provide compact and powerful solutions for manipulating light in deep-subwavelength dimensions, which is promising for a great range of nanophotonic technologies such as plasmonic rulers and sensors. However, the effective area of enhanced localized field induced by surface plasmon polaritons is typically restricted to the structural boundaries. In this work, we propose a method to generate high quality-factor extended electromagnetic fields via hybridizing the super-radiant state and the quasi bound state in the continuum of graphene metasurfaces. The coupling interaction involved operates as a three-level system with multiple sharp resonances immune to the polarization, which holds great promise for developing nanodevices with high sensing capacity in two dimensions.