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一个可调整的广角窄带完美吸收器,基于一个含有超波超材料的光学腔

Zhenlong Xie^1,2, Xu Zhu^1,2, Yijing Deng^1,2

¹Key Laboratory of Atomic and Subatomic Structure and Quantum Control (Ministry of Education), Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter, School of Physics, South China Normal University, Guangzhou 510006, China. yhchen@scnu.edu.cn.

Physical chemistry chemical physics : PCCP

|October 25, 2023

概括

这项研究介绍了一种不敏感角度的吸收器,它使用了带有超大波形元材料的微腔. 该设备在近红外线中实现稳定,窄带吸收,可根据共振器厚度调节.

科学领域:

超材料是指一种超材料.
纳米光子学纳米光子学
光学工程是指光学工程.

背景情况:

超材料具有独特的光学特性.
窄带吸收器对于各种光子应用至关重要.
取决于角度的吸收限制了设备的性能.

研究的目的:

用一种新的微腔设计来证明广角窄带吸收.
为了实现对角度不敏感的法布里-佩罗特共振.
为了探索近红外区域的可调节吸收.

主要方法:

一个微空洞的制造,包括高压的元材料,介电层和金属反射器.
使用,氧化 (ITO) 和金层.
调查发生角度对共振和吸收的影响.

主要成果:

实现了广角 (0°至70°) 角不敏感的窄带吸收.
通过改变共振器厚度来证明可调的吸收波长.
在广的角度范围内观察到稳定的吸收性能.

结论:

拟议的微腔设计可实现强大的,对角度不敏感的窄带吸收.
吸收器的可调性特性增强了它的多功能性.
潜在的应用包括热光伏发射器,探测器和过器.

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