Experimental generation of Kagome lattices using metasurface of integrated convex lens

被引：2

作者：

Li, Zhenhua ^{[1
]}

Cheng, Chuanfu ^{[2
]}

Liu, Hanping ^{[1
]}

Li, Dawei ^{[3
]}

Xu, Shicai ^{[4
]}

Liu, Huilan ^{[1
]}

Zhang, Junye ^{[1
]}

Zhang, Suzhen ^{[1
]}

机构：

[1] Dezhou Univ, Coll Phys & Elect Informat, Dezhou 253023, Peoples R China

[2] Shandong Normal Univ, Coll Phys & Elect, Jinan 250014, Peoples R China

[3] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China

[4] Dezhou Univ, Shandong Key Lab Biophys, Dezhou 253023, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2020年 / 18卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Kagome lattice; metasurface; phase modulation; OPTICAL VORTEX;

D O I：

10.3788/COL202018.012201

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 non-conventional 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 6 pi, 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

页数：5

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