2026-10-11T23:04:05Z https://www.scidb.cn/oai

10.57760/sciencedb.17948 2024-12-09T22:13:10Z

2024-12-09 Flexible manipulation of perfect vortex beams with high reflection efficiency through the all-dielectric metasurface doi:10.57760/sciencedb.17948 en we design and realize perfect vortex beam with high reflection efficiency of 90.17% by an all-dielectric metasurface through PB phase modulation structure. Flexible manipulation of topological charge and ring diameter can be achieved by modulating different parameters. In addition, we also demonstrate the generation of a 4-channel perfect vortex beam array based on the Dammann grating, with a beam uniformity of 40%.  perfect vortex beam; PB phase; Dammann grating; high reflection efficiency Sun Xiaojie He Jiajing Yan Zhouyuan Wang Yan Tao Haixu Yang Xuan Wang Jun RESTRICTED dataset Science Data Bank