太赫兹辐射
透射率
极化(电化学)
光学
线极化
材料科学
宽带
传输(电信)
圆极化
物理
光电子学
化学
电信
微带线
激光器
物理化学
计算机科学
作者
Jianghao Wu,Mohsin Ali Shah Syed,Limei Qi,Xiang Tao,Jun Yang,Lue Wen
摘要
A double-layer broadband high-transmission terahertz linear-to-circular polarization metasurface is experimentally demonstrated in frequencies between 0.46 and 0.62 THz. The measured results show a good agreement with the simulations. The values of co-polarization transmission coefficients Txx and Tyy remain above 0.82 in both simulation and experiment, and the simulated and measured axial ratio is 26.2% and 29.6%, respectively. Moreover, the experimental ellipticity remains above 0.98 in the region from 0.5 to 0.62 THz. The average measured polarization conversion ratio is 0.68. The multi-reflection and transmission interference model is used to explain the physical mechanism of polarization conversion. The proposed structure could be used in terahertz transmission and detection because of its stable, high ellipticity and transmittance.
科研通智能强力驱动
Strongly Powered by AbleSci AI