Experimental generation of Kagome lattices using metasurface of integrated convex lens

被引：0

作者：

李振华 ^{[1
]}

程传福 ^{[2
]}

刘汉平 ^{[1
]}

李大伟 ^{[3
]}

许士才 ^{[4
]}

刘辉兰 ^{[1
]}

张俊叶 ^{[1
]}

张素真 ^{[1
]}

机构：

[1] College of Physics and Electronic Information, Dezhou University

[2] College of Physics and Electronics, Shandong Normal University

[3] Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences

[4] Shandong Key Laboratory of Biophysics, Dezhou University

来源：

Chinese Optics Letters | 2020年 / 18卷 / 01期

关键词：

Kagome lattice; metasurface; phase modulation;

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this Letter, we fabricate integrated metasurface of encoded dynamic phases and experimentally generate nonconventional Kagome-type lattices of no-second-order phase vortices. The thin metasurface acts analogous to an integration of three conventional optical elements, i.e., six pinholes located at the vertices of two concentric regular triangles of size ratio 1:2, six transparent discs of different thicknesses to introduce a total phase shift difference of 6π, and a Fourier lens with a focal length in the micro-scale. A Kagome lattice with the required vortex distribution is realized at the "focal" plane of the metasurface under illumination of the plane wave.

引用

页码：90 / 94

页数：5