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Proceedings Paper

Terahertz broadband polarization converter based on metamaterials
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Paper Abstract

Based on the metamaterial composed of symmetrical split resonant ring, a broadband reflective terahertz polarization converter is proposed. The numerical simulation shows that it can rotate the polarization direction of linear polarized wave 90° in the range of 0.7-1.8THz and the polarization conversion ratio is over 90%. The reflection coefficient of the two electric field components in the diagonal direction is the same and the phase difference is 180° ,which leads to the cross-polarization rotation.In order to further study the physical mechanism of high polarization conversion, we analyze the surface current distribution of the resonant ring. The polarization converter has potential applications in terahertz wave plate and metamaterial antenna design.

Paper Details

Date Published: 12 January 2018
PDF: 11 pages
Proc. SPIE 10622, 2017 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices, 106220L (12 January 2018); doi: 10.1117/12.2295794
Show Author Affiliations
Yonghua Li, Capital Normal Univ. (China)
Guozhong Zhao, Capital Normal Univ. (China)


Published in SPIE Proceedings Vol. 10622:
2017 International Conference on Optical Instruments and Technology: Micro/Nano Photonics: Materials and Devices
Baojun Li; Xingjun Wang; Ya Sha Yi; Liquan Dong, Editor(s)

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