With the emerging trend of big data and internet-of-things, sensors with compact size, low cost and robust performance are highly desirable. Spectral imaging and spectral LIDAR systems enable measurement of spectral and 3D information of the ambient environment. These systems have been widely applied in different areas including environmental monitoring, autonomous driving, biomedical imaging, biometric identification, archaeology and art conservation. In this review, modern applications of state-of-the-art spectral imaging and spectral LIDAR systems in the past decade have been summarized and presented. Furthermore, the progress in the development of compact spectral imaging and LIDAR sensing systems has also been reviewed. These systems are based on the nanophotonics technology. The most updated research works on subwavelength scale nanostructure-based functional devices for spectral imaging and optical frequency comb-based LIDAR sensing works have been reviewed. These compact systems will drive the translation of spectral imaging and LIDAR sensing from table-top toward portable solutions for consumer electronics applications. In addition, the future perspectives on nanophotonics-based spectral imaging and LIDAR sensing are also presented.

中文翻译：

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光谱成像和光谱LIDAR系统：向紧凑的基于纳米光子学的传感方向发展

随着大数据和物联网的新兴趋势，迫切需要尺寸紧凑，成本低廉且性能稳定的传感器。光谱成像和光谱LIDAR系统可以测量周围环境的光谱和3D信息。这些系统已广泛应用于不同领域，包括环境监测，自动驾驶，生物医学成像，生物特征识别，考古学和艺术保护。在这篇综述中，总结并介绍了过去十年中最先进的光谱成像和光谱LIDAR系统的现代应用。此外，还对紧凑型光谱成像和LIDAR传感系统的开发进展进行了回顾。这些系统基于纳米光子学技术。对亚波长尺度的基于纳米结构的光谱成像功能器件和基于光频率梳的LIDAR传感技术的最新研究成果进行了综述。这些紧凑的系统将推动光谱成像和LIDAR传感技术从台式向便携式电子产品的便携式解决方案转变。此外，还介绍了基于纳米光子学的光谱成像和LIDAR传感技术的未来前景。