Nanophotonic devices, composed of metals, dielectrics, or semiconductors, enable precise and high-spatial-resolution manipulation of electromagnetic waves by leveraging diverse light–matter interaction mechanisms at subwavelength length scales. Their compact size, light weight, versatile functionality and unprecedented performance are rapidly revolutionizing how optical devices and systems are constructed across the infrared, visible, and ultraviolet spectra. Here, we review recent advances and future opportunities of nanophotonic elements operating in the ultraviolet spectral region, which include plasmonic devices, optical metamaterials, and optical metasurfaces. We discuss their working principles, material platforms, fabrication, and characterization techniques, followed by representative device applications across various interdisciplinary areas such as imaging, sensing and spectroscopy. We conclude this review by elaborating on future opportunities and challenges for ultraviolet nanophotonic devices.

中文翻译：

---

紫外纳米光子学的最新进展：从等离子体和超材料到超表面

由金属、电介质或半导体组成的纳米光子器件通过在亚波长尺度上利用不同的光-物质相互作用机制来实现对电磁波的精确和高空间分辨率的操纵。它们紧凑的尺寸、轻巧的重量、多功能的功能和前所未有的性能正在迅速改变红外、可见光和紫外光谱范围内光学设备和系统的构建方式。在这里，我们回顾了在紫外光谱区域工作的纳米光子元件的最新进展和未来机会，其中包括等离子体器件、光学超材料和光学超表面。我们讨论了它们的工作原理、材料平台、制造和表征技术，其次是跨学科领域的代表性设备应用，如成像、传感和光谱学。我们通过详细阐述紫外线纳米光子器件的未来机遇和挑战来结束本次审查。