Vector Vortex Beam Generation with a Single Plasmonic Metasurface

Fuyong Yue, Dandan Wen, Jingtao Xin, Brian D Gerardot, Jensen Li, Xianzhong Chen

Research output: Contribution to journalArticle

136 Citations (Scopus)
176 Downloads (Pure)

Abstract

Despite a plethora of applications ranging from quantum memories to high-resolution lithography, the current technologies to generate vector vortex beams (VVBs) suffer from less efficient energy use poor resolution, low damage threshold, and bulky size, preventing further practical applications. We propose and experimentally demonstrate an approach to generate VVBs with a single metasurface by locally tailoring phase and transverse polarization distribution. This method features the spin-orbit coupling and the superposition of the converted part with an additional phase pickup and the residual part without a phase change. By maintaining the equal components for the converted part and the residual part, the cylindrically polarized vortex beams carrying orbital angular momentum are experimentally demonstrated based on a single metasurface at subwavelength scale. The proposed approach provides unprecedented freedom in engineering the properties of optical waves with the high-efficiency light utilization and a minimal footprint.
Original languageEnglish
Pages (from-to)1558-1563
Number of pages6
JournalACS Photonics
Volume3
Issue number9
Early online date20 Jul 2016
DOIs
Publication statusPublished - 21 Sep 2016

Keywords

  • metasurface
  • vector vortex beam
  • orbital angular momentum
  • inhomogeneous polarization distribution

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