期刊
ADVANCED MATERIALS
卷 31, 期 23, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201901188
关键词
nonlinear metasurfaces; quasicrystals
类别
资金
- Guangdong Provincial Innovation and Entrepreneurship Project [2017ZT07C071]
- Applied Science and Technology Project of Guangdong Science and Technology Department [2017B090918001]
- National Natural Science Foundation of China [11774145]
- Natural Science Foundation of Shenzhen Municipal Science and Technology Innovation Commission [JCYJ20170412153113701]
Photonic metasurfaces, a kind of 2D structured medium, represent a novel platform to manipulate the propagation of light at subwavelength scale. In linear optical regime, many interesting topics such as planar meta-lenses, metasurface optical holography, and so on have been widely investigated. Recently, metasurfaces have gone into the nonlinear optical regime. While it is recognized that the local symmetry of the meta-atoms plays a vital role in determining the polarization, phase, and intensity of the nonlinear waves, much less attention has been paid to the global symmetry of the nonlinear metasurfaces. According to the Penrose tiling and the newly proposed hexagonal quasicrystalline tiling, nonlinear optical quasicrystal metasurfaces are designed and fabricated based on the geometric-phase-controlled plasmonic meta-atoms with local rotational symmetry. It is found that the far-field radiation behavior of second harmonic generation waves are determined by both the tiling schemes of quasicrystal metasurfaces and the local symmetry of meta-atoms they consist of. The proposed concept may open new avenues for designing nonlinear optical sources with metasurface crystals.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据