Terahertz quasi non-diffraction Bessel vortex beam generation using three lattice types reflective metasurface.
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DOI: 10.1364/oe.470894
Abstract: Bandwidth, orbital-angular momentum (OAM) divergence, and mode purity are the three critical issues for the practical terahertz orbital angular momentum manipulation, especially in the next sixth-generation (6G) communication system. Here we propose the broadband high-order… read more here.
Keywords: lattice types; vortex beam; bessel vortex; lattice ... See more keywords