Optical Metasurfaces for Grafted Vortex Beams Generation

Hammad Ahmed*, Muhammad Afnan Ansari, Xianzhong Chen

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review


Inspired by plant grafting, the act of placing a portion of one plant (scion) on a branch or root of another (rootstock), grafted vortex beams (GVBs) can be formed through grafting two or more helical phase profiles of optical vortex beams. GVBs have attracted much attention due to their unique optical properties and potential applications. Here, we propose and demonstrate the coaxial superposition of GVBs without relying on the complicated optical setup. The coaxial superposition of GVBs can generate asymmetric singularity distribution, which can be modulated by introducing an initial phase difference in the metasurface design. Our work has provided a compact metasurface approach to complete the sophisticated task that is extremely challenging or impossible with conventional optics, opening opportunities for the study and applications of GVBs in a wide range of areas.

Original languageEnglish
Number of pages2
Publication statusPublished - 2023
Event13th International Conference on Metamaterials, Photonic Crystals and Plasmonics 2023 - Paris, France
Duration: 18 Jul 202321 Jul 2023


Conference13th International Conference on Metamaterials, Photonic Crystals and Plasmonics 2023
Abbreviated titleMETA 2023

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Materials Science (miscellaneous)
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry


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