Broadband Terahertz Linear-to-Circular Polarization Conversion

被引：0
|
作者：
Chang, Chun-Chieh [1 ]
Chen, Hou-Tong [1 ]
机构：
[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
来源：
2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ) | 2018年
关键词：
METAMATERIALS;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We use a bilayer anisotropic terahertz metasurface to demonstrate broadband linear-to-circular polarization conversion in reflection. In experiments the metasurface structure enables >85% conversion efficiency, 67% fractional bandwidth, and nearly 100% degree of circular polarization. By simply rotating the metasurface by 90 it allows the conversion to the opposite circular polarization. Such a metasurface device can open a host of applications where circular polarization and modulation are desirable.
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页数：3
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