Inverse design of polarization-insensitive C-band Dammann grating based on dielectric metasurface

Qiuyu Zhang,Dingquan Liu,Junli Su,Sheng Zhou,Yuanyuan Kong,Haihan Luo,Lingshan Gao,Yunbo Xiong,Weibo Duan

Results in Physics（2023）

Cited 1|Views12

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Abstract

•Usage of a hybrid genetic algorithm and particle swarm optimization method led to higher performance of metasurfaces.•Metasurface-based Dammann grating for generating wide-angle spot arrays with efficiency approaching 90% and uniformity error lower than 4.67% has been demonstrated.•The intensity distributions of the spot arrays can be modulated through the optimization method.

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Key words

Metasurface,Dammann gratings,Inverse design,High efficiency,Wide-angle

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