Flexible manipulation of perfect vortex beams with high reflection efficiency through the all-dielectric metasurface
收藏科学数据银行2024-12-09 更新2026-04-23 收录
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资源简介:
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%.
提供机构:
Shanghai Institute of Optics and Fine Mechanics
创建时间:
2024-12-03



