作者
Huade Mao, Yu-Xuan Ren, Yue Yu, Zejie Yu, Xiankai Sun, Shuang Zhang, Kenneth KY Wong
发表日期
2021/9/1
期刊
Photonics Research
卷号
9
期号
9
页码范围
1689-1698
出版商
Optica Publishing Group
简介
Metasurface provides miniaturized devices for integrated optics. Here, we design and realize a meta-converter to transform a plane-wave beam into multiple Laguerre-Gaussian (LG) modes of different orders at various diffraction angles. The metasurface is fabricated with Au nano-antennas, which vary in length and orientation angle for modulation of both the phase and the amplitude of a scattered wave, on a silica substrate. Our error analysis suggests that the metasurface design is robust over a 400 nm wavelength range. This work presents the manipulation of LG beams through controlling both radial and azimuthal orders, which paves the way in expanding the communication channels by one more dimension (i.e., radial order) and demultiplexing different modes.
引用总数
20212022202320241962
学术搜索中的文章
H Mao, YX Ren, Y Yu, Z Yu, X Sun, S Zhang… - Photonics Research, 2021