DOI: 10.3724/SP.J.1249.2019.02152

Journal of Shenzhen University Science and Engineering (深圳大学学报理工版) 2019/36:2 PP.152-156

Terahertz anisotropic metamaterials based on metal slit ring array

A terahertz anisotropic metamaterial based on metal slit ring array is proposed and discussed. The anisotropic characteristics of the structure are simulated by the finite element method and measured by terahertz transmission spectroscopy. The anisotropy of the structure due to the anisotropy of metal slit ring array and the developed anisotropic modulation of the terahertz transmission is proved. Finally, the terahertz polarization conversion characteristic of the anisotropic metamaterial is tested experimentally. And the polarization conversion results are obtained by converting the incident wave with linear deviation into its vertical polarization direction, which are consistent with the law of conventional optical birefringent materials. This kind of metamaterial is expected to be used in terahertz wave plates and isolators.

Key words:terahertz,metamaterial,metallic slit ring,anisotropy,polarization conversion,birefringence

ReleaseDate:2019-12-02 09:24:38

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