Multifunctional metasurface lens for imaging and Fourier transform

Dandan Wen, Fuyong Yue, Marcus Ardron, Xianzhong Chen

Research output: Contribution to journalArticle

36 Citations (Scopus)
111 Downloads (Pure)

Abstract

A metasurface can manipulate light in a desirable manner by imparting local and space-variant abrupt phase change. Benefiting from such an unprecedented capability, the conventional concept of what constitutes an optical lens continues to evolve. Ultrathin optical metasurface lenses have been demonstrated based on various nanoantennas such as V-shape structures, nanorods and nanoslits. A single device that can integrate two different types of lenses and polarities is desirable for system integration and device miniaturization. We experimentally demonstrate such an ultrathin metasurface lens that can function either as a spherical lens or a cylindrical lens, depending on the helicity of the incident light. Helicity-controllable focal line and focal point in the real focal plane, as well as imaging and 1D/2D Fourier transforms, are observed on the same lens. Our work provides a unique tool for polarization imaging, image processing and particle trapping.
Original languageEnglish
Article number27628
JournalScientific Reports
Volume6
DOIs
Publication statusPublished - 8 Jun 2016

Keywords

  • Metasurface
  • Multifunction
  • Utrathin lens

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