基于超表面的热辐射调控与红外应用(特邀)  

Thermal Emission Manipulation and Its Infrared Applications Based on Metasurfaces(Invited)

作　　者：尚效合 仲帆 尚劲光 张也 肖彦玲 祝世宁[1] 刘辉[1] Shang Xiaohe;Zhong Fan;Shang Jinguang;Zhang Ye;Xiao Yanling;Zhu Shining;Liu Hui(School of Physics,National Laboratory of Solid State Microstructures,Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210093,Jiangsu,China;School of Physics,Key Laboratory of Quantum Materials and Devices of Ministry of Education,Southeast University,Nanjing 211189,Jiangsu,China)

机构地区：[1]南京大学物理学院,固体微结构物理国家重点实验室,人工微结构科学与技术协同创新中心,江苏南京210093 [2]东南大学物理学院,量子材料与信息器件教育部重点实验室,江苏南京211189

出　　处：《光学学报》2024年第19期1-20,F0002,共21页Acta Optica Sinica

基　　金：国家自然科学基金(12334015,92163216,92150302,62288101);国家自然科学基金青年科学基金(12004072)。

摘　　要：近年来,具有亚波长尺寸与超薄厚度的二维超表面结构以其灵活可控的光学响应,成功打破传统热辐射调控研究的瓶颈。目前,基于各种设计的超表面结构已实现了在波长、偏振、方向、时间和相干性等多个自由度上的热辐射调控,并促进了红外器件的小型化与集成化的发展。基于上述研究,回顾了近年来通过超表面调控热辐射的研究进展,并介绍了相应的红外应用发展,如红外传感、辐射制冷和热光伏器件等。Significance As is known,traditional thermal emission is broadband,unpolarized,and incoherent,typically altered by changing temperature to modify spectral line shapes and intensities.Conventional materials face challenges in accurately controlling the radiation characteristics with multiple degrees of freedom,limiting their applications in infrared spectra.In recent years,two-dimensional metasurface structures with sub-wavelength size and ultra-thin thickness have overcome the limitations of traditional research on thermal emission manipulation due to their flexible and controllable optical response.Metasurface structures obtained via various designs have successfully manipulated thermal emission in multiple degrees of freedom,such as wavelength,polarization,direction,time,and coherence.This has promoted the miniaturization and integration of infrared devices.Progress Both realizing rational wavelength-selective emission and manipulating the emission at other wavelengths as much as possible are essential for practical infrared applications.In 2011,Liu’s research group experimentally developed a narrow dual-band mid-infrared thermal emitter[Fig.1(a)].In 2013,Argyropoulos’research group discussed the possibility of realizing ultra-broadband omnidirectional absorbers and angularly selective coherent thermal emitters based on properly patterned plasmonic metastructures[Fig.1(b)].In 2015,Hossain’s group designed and experimentally demonstrated a metamaterial thermal emitter for highly efficient radiative cooling[Fig.1(c)].In contrast to unpolarized blackbody thermal emission,metasurface-based thermal emitters with fabricated subwavelength meta-atoms typically emit polarized thermal emission.For linearly polarized thermal emission,Liu’s research group experimentally demonstrated a new type of macroscopic perfect and tunable thermal emitters in 2017[Fig.2(a)].Additionally,circularly polarized thermal emission is another hot spot for polarization manipulation of thermal emission.In 2010,Dahan’s research group e

关 键 词：超表面 超表面阵列 热辐射调控 红外应用 

分 类 号：TN214[电子电信—物理电子学]