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一种生物启发的双层元材料,用于对可见,多波长检测激光器和中红外选择性辐射进行多谱操纵

Xianghui Liu¹, Pan Wang¹, Chengyu Xiao¹

¹State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.

Advanced materials (Deerfield Beach, Fla.)

|July 4, 2023

概括

研究人员开发了一种生物灵感的超材料,用于先进的电磁签名控制. 这种新型材料可以操纵可见光,激光和中红外光,从而使其在冷却和光学设备中的应用成为可能.

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:

多谱电磁签名操纵对于各种应用至关重要.
将不同的光谱要求集成到元材料中,带来了设计和制造方面的挑战.

研究的目的:

提出一种生物灵感的双层超材料,用于同时操纵可见波段,激光波段和中红外波段 (MIR波段).
使用单一的超材料结构来实现辐射冷却和选择性吸收.

主要方法:

使用双层 (Pt) 盘和二氧化 (SiO2) 中间层设计和制造双层元材料.
灵感来自蝶的宽带反射分裂.
使用了低成本的体光刻法和双重图案工艺.

主要成果:

实现了0.8-1.6微米的超低光反射率 (平均0.013),具有广的散射角度.
证明了结构色彩的可调可视反射.
在MIR (5-8微米和10.6微米) 实现了选择性双吸收峰值,用于辐射冷却和激光吸收.
经过实验验证的多谱性能,最高温度下降为15.7°C.

结论:

拟议的生物灵感超材料有效地实现了多谱光学响应.
这项工作为设计灵感来自自然结构的多功能元材料提供了一个可行的策略.
已经证明了先进的热管理和光学应用的潜力.

关键词:

生物启发的元材料合体石版印刷是一种合体石版印刷.多光谱操纵的多光谱操纵辐射冷却是一种辐射冷却.

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