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Gap-surface Plasmon Metasurfaces for Focused Structured-beams Generation

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Abstract

Capitalizing on gap-surface plasmon metasurfaces (GSPMs), we experimentally generate focused structured-beams in the near-infrared range (750–950 nm) with broadband and highly-efficient performance, including the polarized-converted focused vortex beam (PCFVB) and focused vector-beam (FVB).

© 2019 The Author(s)

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