【摘要】 周期光学系统，如光子晶体和光学超材料，可以在亚波长尺度形成高密度的电磁场能量局域，并获得极小的模式体积，在光操控领域具有巨大的应用潜力。近年来，研究人员在周期光学系统中发现一种光与物质的强相互作用，其被称为连续域束缚态。它是一类频率位于辐射连续域内但被完全局域的特殊电磁本征态，具有诸多有趣的物理特性和丰富的应用场景。本文系统性综述了周期光学系统中连续域束缚态的分类及其理论体系，并总结了其基本物理特性和最新应用发展。周期光学系统中的连续域束缚态正在为集成光学、信息光学、生物光学、拓扑光学以及非线性光学等领域注入新的发展动力。更多还原

【Abstract】 Periodic optical systems, such as photonic crystals and optical metamaterials, can localize highdensity electromagnetic field energy at subwavelength scales and obtain extremely small mode volumes, so they have great application potential in the field of light manipulation. In recent years, a strong interaction between light and matter in periodic optical systems has been discovered, which is called Bound States in Continuum(BIC). Optics BICs are special electromagnetic eigenstates whose frequencies lie in the radiation continuum but are completely localized, and have shown interesting physics and rich application scenarios.This paper systematically reviews the classification and theory of BICs in periodic optical systems, and summarizes their basic physical properties and the latest application development. BICs in periodic optical systems are injecting new impetus into the fields of integrated optics, information optics, bio-optics, topological optics, and nonlinear optics.更多还原