Implementing of infrared camouflage with thermal management based on inverse design and hierarchical metamaterial
Author:
Jiang Xinpeng1ORCID, Yuan Huan12ORCID, He Xin1, Du Te1, Ma Hansi1, Li Xin1, Luo Mingyu1, Zhang Zhaojian1ORCID, Chen Huan1, Yu Yang1, Zhu Gangyi3, Yan Peiguang2ORCID, Wu Jiagui4, Zhang Zhenfu1, Yang Junbo1
Affiliation:
1. Center of Material Science, College of Sciences , National University of Defense Technology , Changsha 410073 , China 2. College of Electronic and Information Engineering , Southwest University , Chongqing 400715 , China 3. Peter Grünberg Research Centre, College of Telecommunications and Information Engineering , Nanjing University of Posts and Telecommunications , Nanjing 210003 , China 4. College of Physics and Optoelectronic Engineering , Shenzhen University , Shenzhen 518060 , China
Abstract
Abstract
Infrared camouflage is an effective technique to avoid many kinds of target detection by detectors in the infrared band. For a high-temperature environment, thermal management of selective emission is crucial to dissipate heat in the mid-infrared non-atmospheric window (5–8 μm). However, it still remains challenges for balancing infrared camouflage and thermal management. Here, we experimentally demonstrate a multilayer film structure (MFS) for infrared camouflage with thermal management. Combining the ideal emission spectrum and genetic algorithm (GA), the inverse-design MFS containing 7 layers of five materials (SiO2, Ge, ZnS, Pt and Au) has been designed. Based on the hierarchical metamaterial, the optimized MFS has high performance of infrared camouflage to against the lidar detection in the near-infrared band. The experimental results reveal the high compatible efficiency among thermal camouflage (ε
3–5μm = 0.21, ε
8–14μm = 0.16), laser stealth (ε
1.06μm = 0.64, ε
1.55μm = 0.90, ε
10.6μm = 0.76) and thermal management (ε
5–8μm = 0.54). Therefore, the proposed MFSs are attractive as basic building block of selective emitter, for the application of advanced photonics such as radiative cooling, infrared camouflage, and thermal emission.
Funder
Program for New Century Excellent Talents in University China Postdoctoral Science Foundation Foundation of NUDT National Natural Science Foundation of China Hunan Provincial Natural Science Foundation of China National Key R&D Program of China
Publisher
Walter de Gruyter GmbH
Subject
Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,Biotechnology
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