人工结构红外选择辐射体研究进展

人工结构红外选择辐射体，是指通过技术手段调控光谱发射率分布特征和幅值大小以改变自身辐射特性的结构/功能材料。由于其辐射特性可设计的特点，可用于能源、环境和军事等领域，具有丰富的应用前景和重要的应用价值。首先，围绕近年来人工结构红外选择辐射体的研究现状，对其设计方法进行总结分类。其次，介绍了基于亚波长单元结构的超材料、光子晶体和多层膜的红外选择辐射体设计原理及研究，并分别指出了3种方法的适用范围及局限性。最后，结合评价体系、工程应用和发展趋势梳理出红外选择辐射体研究领域所面临的技术难点，为下一步发展提供建议并进行展望。

Research Progress in Artificially-Structured Infrared Selective Radiator

Infrared selective radiator means that the object can effectively change the radiation characteristics of the target by regulating the distribution and amplitude of spectral emissivity through technical means. Due to the designable characteristics of radiation, such a material can be applied in energy, environment and military fields, and has a promising prospect and preferred. Firstly, this paper summarizes and classifies the design methods based on the researches of infrared selective radiators in recent years. Besides, this review introduces the design principles and related researches of selective radiator based on metamaterials, photonic crystals, and multilayers. The application scope and relative merits of the three methods are summarized. Lastly, the technical difficulties of infrared selective radiator development are summarized in three aspects: the evaluation system, engineering applications, and development trends. The suggestions and the outlooks for developments of infrared selective radiator are provided.