Chinese Optics Letters, 2020, 18 (1): 012201, Published Online: Dec. 12, 2019   

Experimental generation of Kagome lattices using metasurface of integrated convex lens Download: 874次

Author Affiliations
1 College of Physics and Electronic Information, Dezhou University, Dezhou 253023, China
2 College of Physics and Electronics, Shandong Normal University, Jinan 250014, China
3 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
4 Shandong Key Laboratory of Biophysics, Dezhou University, Dezhou 253023, China
Abstract
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.

Zhenhua Li, Chuanfu Cheng, Hanping Liu, Dawei Li, Shicai Xu, Huilan Liu, Junye Zhang, Suzhen Zhang. Experimental generation of Kagome lattices using metasurface of integrated convex lens[J]. Chinese Optics Letters, 2020, 18(1): 012201.

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