1. Asymmetric transmission based on magnetic resonance coupling in 3D-printed metamaterials.
- Author
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Wei, Guochao, Qin, Zhengpeng, Wang, Shengxiang, Wang, Xiaochuan, Lei, Wen, Li, Yuan, Jiang, Zhi Hao, Kang, Lei, and Werner, Douglas H.
- Subjects
METAMATERIALS ,ELECTROMAGNETIC waves ,THREE-dimensional printing ,CIRCULAR dichroism ,BIREFRINGENCE - Abstract
The resonance based strong light-matter interaction in metamaterials offers unprecedented opportunities to manipulate polarization of electromagnetic waves. In this work, we fabricate a three-dimensional (3D) metamaterial consisting of 90°-twisted split-tube resonators using a 3D printing technique and demonstrate the corresponding asymmetric transmission for linearly polarized electromagnetic waves in the Ku band with near-unity polarization conversion efficiency. Experimental results reveal a 90° polarization rotation and an incident polarization angle dependent asymmetric transmission at a frequency around 15.2 GHz. The experimental results are in good agreement with simulations. Possessing the merits of both flexibility of response tailoring and ease of fabrication, the proposed 3D-printed metamaterials have great potential for compact polarization-control devices exhibiting unidirectional transmission at both microwave and terahertz frequencies. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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