2019/01/24 by Menglin L. N. Chen, Li Jun Jiang, Wei E. I. Sha
Engineering · Materials Science · Mathematics · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Angular momentum #Classical mechanics #Conductor #Discontinuity (linguistics) #Geometry #Grating #Mathematical analysis #Mathematics #Metamaterial #Metamaterials and Metasurfaces Applications #Optical vortex #Optics #Orbital Angular Momentum in Optics #Perfect conductor #Physics #Plane wave #Scattering #physics.class-ph #physics.optics
paper · pdf · doi:10.1109/lawp.2019.2894772
published as IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2019 · 5 pages, 8 figures
openalex publication_date 2019/01/24 · arxiv created 2019/03/04 · arxiv updated 2019/03/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A quasi-continuous composite perfect electric conductor-perfect magnetic conductor metasurface and a systematic metasurface design process are proposed for the orbital angular momentum (OAM) generation. The metasurfaces reflect the incident left circularly polarized (LCP)/right circularly polarized (RCP) plane wave to RCP/LCP vortex beams carrying OAM at normal or oblique direction. Unlike conventional metasurfaces that are composed of discrete scatterers, the scatterers on the proposed metasurface form a quasi-continuous pattern. The patterning of the metasurface is calculated through grating vectors, and no optimization of single scatterer is required. Furthermore, the distortions from local-response discontinuity of discrete scatterers are avoided. This letter provides great convenience to high-quality OAM generation.