宽带
带宽(计算)
光学
光子学
消光比
材料科学
光电子学
传输(电信)
物理
计算机科学
电信
波长
作者
Cheng Zhang,Carl Pfeiffer,Taehee Jang,Vishva Ray,Maxwell M. Junda,Prakash Uprety,Nikolas J. Podraza,Anthony Grbic,L. Jay Guo
标识
DOI:10.1002/lpor.201500328
摘要
Abstract High efficiency, broad bandwidth, and robust angular tolerance are key considerations in photonic device design. Here, a few‐layer, asymmetric light transmitting metasurface that simultaneously satisfies all the above requirements is reported. The metasurface consists of coupled metallic sheets. It has a measured transmission efficiency of 80%, extinction ratio of 13.8 dB around 1.5 μm, and a full width half maximum bandwidth of 1.7 μm. It is as thin as 290 nm, has good performance tolerance against the angle of incidence and constituent nano‐structure geometry variations. This work demonstrates a practical asymmetric light transmission device with optimal performance for large scale manufacturing. image
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