Guo Tian-Long, Li Fangfang, Roussey Matthieu
Center for Photonics Sciences, University of Eastern Finland, P.O. Box 111, FI-80101 Joensuu, Finland.
Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo 315201, China.
Nanomaterials (Basel). 2023 Apr 18;13(8):1401. doi: 10.3390/nano13081401.
For many years, metamaterial absorbers have received much attention in a wide range of application fields. There is an increasing need to search for new design approaches that fulfill more and more complex tasks. According to the specific application requirements, design strategy can vary from structure configurations to material selections. A new combination of a dielectric cavity array, dielectric spacer, and gold reflector as a metamaterial absorber is proposed and theoretically studied in this work. The complexity of the dielectric cavities leads to a more flexible optical response than traditional metamaterial absorbers. It gives a new dimension of freedom for a real three-dimensional metamaterial absorber design.
多年来，超材料吸收体在广泛的应用领域中备受关注。越来越需要寻找能够完成越来越复杂任务的新设计方法。根据具体的应用需求，设计策略可以从结构配置到材料选择而有所不同。本文提出并从理论上研究了一种由介质腔阵列、介质间隔层和金反射器组成的新型超材料吸收体。介质腔的复杂性导致其光学响应比传统超材料吸收体更加灵活。这为真正的三维超材料吸收体设计提供了新的自由度。
