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基于反向设计和层次化的元材料的热管理的红外伪装的实施

Xinpeng Jiang¹, Huan Yuan^1,2, Xin He¹

¹Center of Material Science, College of Sciences, National University of Defense Technology, Changsha 410073, China.

Nanophotonics (Berlin, Germany)

|December 5, 2024

概括

本研究提出了一种新的多层薄膜结构 (MFS),用于先进的红外伪装和热管理. 设计的MFS有效地平衡了高温环境中的热伪装,激光隐形和散热.

科学领域:

材料科学材料科学材料科学
光学是什么?光学是什么?光学是什么?
纳米技术纳米技术

背景情况:

红外伪装对于避免目标检测至关重要.
有效的热管理对于高温环境至关重要,特别是在中红外光谱 (5-8微米) 中.
平衡红外伪装和热管理存在重大挑战.

研究的目的:

通过实验证明一种多层薄膜结构 (MFS) 可同时进行红外伪装和热管理.
使用理想的发射频谱和遗传算法 (GA) 设计一个优化的MFS.
评估MFS在热伪装,激光隐形和热管理方面的性能.

主要方法:

使用五种材料 (SiO2,Ge,ZnS,Pt,Au) 结合理想的发射频谱和GA的7层MFS的反向设计.
基于层次的元材料的MFS的制造.
在不同红外波段中对MFS的光谱发射率进行实验性表征.

主要成果:

优化的MFS在热伪装方面表现出高性能 (ε3-5μm = 0.21, ε8-14μm = 0.16).
在MFS显示显著的激光隐形能力 (ε1.06μm = 0.64, ε1.55μm = 0.90, ε10.6μm = 0.76).
该结构通过选择性排放 (ε5-8μm = 0.54) 实现了有效的热管理.

结论:

开发的MFS成功地集成了红外伪装和热管理.
在热伪装,激光隐形和热管理应用中,MFS显示出高兼容性和效率.
这些MFS是先进光子学选择性发射器的基础元素,包括辐射冷却和红外伪装.

关键词:

一个层次化的超级材料.红外伪装伪装红外伪装设计的反向设计.多层次的多层次的有选择性的排放者.热管理热管理

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