收稿日期: 2015-09-01
网络出版日期: 2017-08-30
基金资助
国家自然科学基金资助项目(61275070); 上海市自然科学基金资助项目(15ZR1415900)
90° THz polarization rotator based on chiral metamaterials
Received date: 2015-09-01
Online published: 2017-08-30
续凯凯, 肖中银, 刘德君, 唐敬瑶, 马孝龙, 王子华 . 基于手征超材料的90°THz 极化偏转器[J]. 上海大学学报(自然科学版), 2017 , 23(4) : 517 -523 . DOI: 10.12066/j.issn.1007-2861.1679
This paper proposes a novel chiral structure consisting of double L resonators fabricated on both sides of the dielectric substrate. Simulation results reveal that the structure can achieve broadband and multi-band 90° polarization rotation of x-polarization wave in a THz band. In particular, the chiral structure can realize 90° polarization rotation for x-polarized and y-polarized waves at 2.56 THz. Meanwhile, ellipticity of the linear polarization wave is about 0°. The physical mechanism of linearly polarized wave conversion based on electric fields is analyzed. The structure can also be used to design 90° polarization polarizer in other bands, for instance, microwave and near infrared regions.
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