Bio-inspired terahertz metamaterials based on hybrid additive manufacturing

被引:0
作者
Yu, Bo [1 ]
Yang, Tong [1 ]
Jiang, Huiqi [1 ]
Li, Xinyu [1 ]
Cui, Tiansheng [1 ]
Liu, Ke [1 ]
Gong, Cheng [1 ]
Liu, Weiwei [1 ]
机构
[1] Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin
来源
Additive Manufacturing | 2024年 / 96卷
关键词
Bio-inspired structure; Hybrid additive manufacturing; Terahertz metamaterials;
D O I
10.1016/j.addma.2024.104593
中图分类号
学科分类号
摘要
Terahertz metamaterials are considered the core components of the next generation of optoelectronic systems, and the design of their sub-wavelength structures is the key to improve system performance. Inspired by three-dimensional morphology of natural biological surfaces, the bio-inspired structure terahertz metamaterials are proposed, which can improve the bandwidth, robustness and functionality. Moreover, a hybrid additive manufacturing method is proposed, which is based on two switchable 3D printing techniques: the first is for printing the metamaterial dielectric structures; the second is for printing the conductive patterns. This method can not only fabricate complex three-dimensional dielectric structures, but also has the advantages of simple process, low cost, high precision and integration. Two bio-inspired terahertz metamaterials (broad-band and multi-function) were designed, simulated and prepared. An all-fiber terahertz time-domain spectroscopy system was built to measure the transmission and reflection spectra. The results are consistent with expectations. It demonstrates the effectiveness and potential of the bio-inspired metamaterials and the hybrid additive manufacturing method. © 2024 Elsevier B.V.
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