Multifunctional Metasurfaces for Multispectral Infrared Detection With Radiative Cooling

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-11-27 DOI:10.1109/LPT.2024.3507693

Yaoyao Xu;Pengfei Zhang;Yao Ma;Jun Liu;Liyan Zhu;Lifeng Wang;Xiaodong Huang

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引用次数: 0

Abstract

Infrared detection is promising for aircraft surveillance. The stealth aircraft displays intense radiation characteristics in the two long-wave infrared frequency ranges (8.02-

$8.58~\mu $

m and 9.24-

$9.96~\mu $

m). Therefore, it is quite important to enhance the detection precision in these two ranges. In addition, camouflage of the infrared detector itself requires low emissivity in the long-wave-infrared range. Moreover, in order to cool down the infrared detector, it is desirable to increase emissivity in the 5-

$8~\mu $

m non-atmospheric window. In this work, a multifunctional metasurface with the Au/SiO2/Au thin film structure is designed and prepared. The structure exhibits high emissivity of 0.65 and 0.72 in the aircraft detection windows (8.02-

$8.58~\mu $

m and 9.24-

$9.96~\mu $

m) while maintaining low emissivity of 0.23 outside the detection windows for IR stealth. It also achieves high emissivity, with a maximum value of 0.65 and an average value of 0.38, in the non-atmospheric window (5-

$8~\mu $

m) for thermal management. Exploration in the physical mechanisms of the compatible metasurface is conducted and discussed that the periodic array metal structure at the top layer allows the frequency selectivity while the metal/insulator/metal (MIM) structure localizes the incident wave under the synergistic effect of the intrinsic properties of materials and local surface plasmon, resulting in resistance losses. This work might bring more opportunities in military fields for optimizing multispectral infrared detection, device camouflage and radiation transmission signal processing.

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辐射冷却多光谱红外探测的多功能超表面

红外探测在飞机监视中很有前途。隐身飞机在8.02 ~ $8.58~ $ $ $ m和9.24 ~ $9.96~ $ $ $ $ m两个长波红外频率范围内表现出强烈的辐射特性，因此提高这两个范围内的探测精度十分重要。此外，红外探测器本身的伪装要求在长波-红外范围内具有较低的发射率。此外，为了使红外探测器降温，需要在5 ~ 8 μ m的非大气窗口增加发射率。本文设计并制备了具有Au/SiO2/Au薄膜结构的多功能超表面。该结构在飞机探测窗口（8.02 ~ 8.58~ $ $ $ m和9.24 ~ $9.96~ $ $ $ $ m）内具有0.65和0.72的高发射率，而在红外隐身探测窗口外则保持0.23的低发射率。在热管理的非大气窗口（5- $8~\mu $ m）中，它也实现了高发射率，最大值为0.65，平均值为0.38。对相容超表面的物理机制进行了探索，并讨论了顶层的周期阵列金属结构允许频率选择性，而金属/绝缘体/金属（MIM）结构在材料固有性质和局部表面等离子体的协同作用下使入射波局部化，从而导致电阻损失。这一工作可能为优化多光谱红外探测、装备伪装和辐射传输信号处理等军事领域带来更多机会。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.