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.
作者
Zhenhua Li
Chuanfu Cheng
Hanping Liu
Dawei Li
Shicai Xu
Huilan Liu
Junye Zhang
Suzhen Zhang
李振华;程传福;刘汉平;李大伟;许士才;刘辉兰;张俊叶;张素真(College of Physics and Electronic Information,Dezhou University,Dezhou 253023,China;College of Physics and Electronics,Shandong Normal University,Jinan 250014,China;Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Shandong Key Laboratory of Biophysics,Dezhou University,Dezhou 253023,China)
基金
This work was supported by the National Natural Science Foundation of China(Nos.11704059,11547225,and 11604040)
the Programs of Technology Development of Higher Education of Shandong Province(No.J15LJ05).
