发射率
太赫兹辐射
材料科学
红外窗口
低发射率
光电子学
微观结构
红外线的
太赫兹光谱与技术
吸收(声学)
光学
反射(计算机编程)
超材料吸收剂
远红外
作者
Mingyang Yang,Ming Zhou,Jianwen Yu,Hongjie Zhang,Bo Xu,Wenjun Cheng,Xuyin Li
标识
DOI:10.3389/fphy.2021.633971
摘要
In this paper, a similar Fabry-Perot cavity structure utilizing a multilayer film structure consisting of an ultrathin metal film is demonstrated for absorbing the infrared ray. This structure has low emissivity in the atmospheric window (3–5 and 8–14 μm) and high emissivity in the nonatmospheric window (5–8 μm). These properties improved the stealth performance which causes the high emissivity in 5–8 μm to radiate more energy to reduce its temperature. Based on this, the periodic microstructures were added to the surface of the materials that enhanced the absorption of terahertz wave (0.1–2.7 THz). The absorber based on multilayer film has a simple structure and low manufacturing cost. This work may provide a new strategy for infrared and terahertz compatible stealth technology.
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