Optical metasurfaces for generating and manipulating optical vortex beams

Hammad Ahmed, Hongyoon Kim, Yuebian Zhang, Yuttana Intaravanne, Jaehyuck Jang, Junsuk Rho, Shuqi Chen, Xianzhong Chen

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
23 Downloads (Pure)

Abstract

Optical vortices (OVs) carrying orbital angular momentum (OAM) have attracted considerable interest in the field of optics and photonics owing to their peculiar optical features and extra degree of freedom for carrying information. Although there have been significant efforts to realize OVs using conventional optics, it is limited by large volume, high cost, and lack of design flexibility. Optical metasurfaces have recently attracted tremen-dous interest due to their unprecedented capability in the manipulation of the amplitude, phase, polarization, and frequency of light at a subwavelength scale. Optical metasurfaces have revolutionized design concepts in photonics, providing a new platform to develop ultrathin optical devices for the realization of OVs at subwave-length resolution. In this article, we will review the recent progress in optical metasurface-based OVs. We pro-vide a comprehensive discussion on the optical manipulation of OVs, including OAM superposition, OAM sorting, OAM multiplexing, OAM holography, and nonlinear metasurfaces for OAM generation and manipula-tion. The rapid development of metasurface for OVs generation and manipulation will play an important role in many relevant research fields. We expect that metasurface will fuel the continuous progress of wearable and portable consumer electronics and optics where low-cost and miniaturized OAM related systems are in high demand.
Original languageEnglish
Pages (from-to)941-956
Number of pages16
JournalNanophotonics
Volume11
Issue number5
Early online date10 Jan 2022
DOIs
Publication statusPublished - Feb 2022

Keywords

  • OAM holography
  • OAM multiplexing
  • OAM sorting
  • OAM superposition
  • nonlinear metasurfaces
  • optical metasurfaces

ASJC Scopus subject areas

  • Biotechnology
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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