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基于韦尔半金属金属材料的超宽带和广角非互换热发射器

Kezhang Shi^1,2,3, Yuwei Sun³, Run Hu⁴

¹Ningbo Innovation Center, Zhejiang University, Ningbo 315100, China.

Nanophotonics (Berlin, Germany)

|December 5, 2024

概括

这项研究介绍了一种新的中红外非互惠热发射器. 它实现了宽带运行和广角发射,无需外部磁场,使用Weyl半金属/电解结构.

科学领域:

凝聚物质物理学凝聚物质物理学
光学是什么?光学是什么?光学是什么?
材料科学材料科学材料科学

背景情况:

非互惠的热辐射偏离了基尔霍夫定律,显示了取决于角度的发射率.
开发用于中红外频率的宽带非互惠热发射器,特别是没有磁场,是具有挑战性的.

研究的目的:

提出和演示一种新的中红外宽带非互惠热发射器.
为了在没有外部磁场的情况下实现广角辐射范围.

主要方法:

使用多层韦尔半金属 (WSM) /电解结构.
杆化的WSM非互惠和epsilon-near-zero (ENZ) 诱导的布鲁斯特模式.

主要成果:

从12μm到20μm实现显著的非互惠的热辐射.
演示了从16°到88°的广泛发射角度范围.
证实了非互惠的稳定性,跨越所有的近视角.

结论:

拟议的WSM/电解结构为非互惠热发射器提供了灵活可靠的设计.
这项技术在辐射冷却,医疗传感和红外加热等领域有着潜在的应用.

关键词:

韦尔半金属是一种半金属.中红外宽带的中红外宽带.非互惠的热辐射.广角范围范围的广角范围.

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