摘要
超材料是一种人工复合结构,因非凡的红外发射/吸收调控能力,成为实现红外隐身技术的有效途径。针对当前超材料实现波长选择性红外辐射隐身的不足,提出和设计了基于耐高温金属材料钼Mo的多层金属-介质-金属(MIM)结构超材料,同时实现了5~8μm波段的宽带高发射(吸收)和中红外波段3~5μm、远红外波段8~14μm的宽带低发射(吸收)。进一步研究表明该隐身结构耐高温性能非常突出,在500~2500 K温度范围内其红外辐射特征都能被抑制,同时,红外辐射的角度选择性也很好,75°范围内时5~8μm和8~14μm波段辐射特性无明显变化。该工作为新型耐高温波长选择性宽带红外隐身技术提供了一个新的途径。
Metamaterial is a kind of artificial composite structure,which has become an effective way to realize infrared stealth technology due to its extraordinary infrared emission(absorption)control ability.Aiming at the shortcomings of current metamaterials in achieving wavelength-selective infrared radiation stealth,a multi-layer metal-insulator-metal(MIM)structured metamaterial based on the high-temperature resistant metal material molybdenum Mo is proposed and designed,which achieves broadband high emission(absorption)in the 5~8μm band,low emission(absorption)in the mid-infrared band 3~5μm and in the far-infrared band 8~14μm at the same time.Further studies show that the stealth structure is highly resistant to high temperatures,and its infrared radiation characteristics can be suppressed in the temperature range of 500~2500 K.At the same time,the angle selectivity of infrared radiation is pretty good,with no significant change in the radiation characteristics of 5~8μm and 8~14μm when the incident angle is less than 75°.It provides a new way for novel high-temperature-resistant wavelength-selective broadband infrared stealth technology.
作者
邹景岚
梁广
朱志宏
ZOU Jing-lan;LIANG Guang;ZHU Zhi-hong(63893 troops,Luoyang 471000,China;College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China)
出处
《激光与红外》
CAS
CSCD
北大核心
2022年第12期1835-1842,共8页
Laser & Infrared
关键词
超材料
红外隐身
波长选择性
耐高温
红外辐射特征
metamaterials
infrared stealth
wavelength-selective
high-temperature resistance
infrared radiation characteristics
