当前位置: X-MOL 学术J. Nanophotonics › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
High focusing efficiency terahertz lens based on Huygens metasurface
Journal of Nanophotonics ( IF 1.5 ) Pub Date : 2021-06-01 , DOI: 10.1117/1.jnp.15.026011
Xianming Xiong 1 , Yangyang Tian 1 , Wei Huang 1 , Yu Cheng 1 , Shan Yin 1 , Yuanda Liang 1 , Wentao Zhang 1
Affiliation  

We propose an ultra-thin Huygens lens with high focusing efficiency and robustness that is composed of a unit cell with a pair of C-shaped split-ring resonators (CSRRs). Compared with the single-layer CSRR lens, the focusing efficiency of the Huygens metasurface lens improves 90% at the best focal lengths and three times at the central frequency. Our device has robustness against geometrical parameters, such as the difference of the opening angle, the mismatch of the opening angle, and the mismatch of the radius, which reduces the manufacturing difficulty. The Huygens lens has unprecedented potential for real-time, quick, electromagnetic wave processing such as holography, beam steering/splitter, imaging, and launcher control.

中文翻译:

基于惠更斯超表面的高聚焦效率太赫兹透镜

我们提出了一种具有高聚焦效率和鲁棒性的超薄惠更斯透镜,它由一个单元和一对 C 形裂环谐振器 (CSRR) 组成。与单层 CSRR 透镜相比,惠更斯超表面透镜的聚焦效率在最佳焦距处提高了 90%,在中心频率处提高了 3 倍。我们的装置对几何参数具有鲁棒性,例如开口角的差异、开口角的不匹配和半径的不匹配,降低了制造难度。惠更斯透镜在实时、快速、电磁波处理方面具有前所未有的潜力,例如全息、光束转向/分离器、成像和发射器控制。
更新日期:2021-06-28
down
wechat
bug