Fast decomposed method to devise broadband polarization-conversion metasurface.

ABSTRACT: Designing a broadband, wide-angle, and high-efficient polarization converter with a simple geometry remains challenging. This work proposes a simple and computationally inexpensive method for devising broadband polarization conversion metasurfaces. We focus on a cross-shape configuration consisting of two bars of different lengths connected at the center. To design the metasurface, we decompose the system into two parts with two orthogonally polarized responses and calculate the response of each part separately. By selecting the parameters with a proper phase difference in the response between the two parts, we can determine the dimensions of the system. For designing broadband polarization conversion metasurfaces, we define a fitness function to optimize the bandwidth of the linear polari

SUBMITTER: Xiao X 

PROVIDER: S-EPMC10199941 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature