Spin and Wavelength Multiplexed Nonlinear Metasurface Holography

Research output: Contribution to journalArticle

Authors

  • Weimin Ye
  • Franziska Zeuner
  • Xin Li
  • Bernhard Reineke
  • Cheng-wei Qiu
  • Juan Liu
  • Yongtian Wang
  • Thomas Zentgraf

Colleges, School and Institutes

External organisations

  • Department of Electrical and Computer Engineering; National University of Singapore; 4 Engineering Drive 3 Singapore 117583

Abstract

Metasurfaces, as the ultrathin version of metamaterials, have caught growing attention due to their superior capability in controlling the phase, amplitude and polarization states of light. Among various types of metasurfaces, geometric metasurface that encodes a geometric or Pancharatnam–Berry phase into the orientation angle of the constituent meta-atoms has shown great potential in controlling light in both linear and nonlinear optical regimes. The robust and dispersionless nature of the geometric phase simplifies the wave manipulation tremendously. Benefitting from the continuous phase control, metasurface holography has exhibited advantages over conventional depth controlled holography with discretized phase levels. Here we report on spin and wavelength multiplexed nonlinear metasurface holography, which allows construction of multiple target holographic images carried independently by the fundamental and harmonic generation waves of different spins. The nonlinear holograms provide independent, nondispersive and crosstalk-free post-selective channels for holographic multiplexing and multidimensional optical data storages, anti-counterfeiting, and optical encryption.

Details

Original languageEnglish
Article number11930
JournalNature Communications
Volume7
Publication statusPublished - 16 Jun 2016

Keywords

  • metasurface, holography, hologram, nonlinear optics, nonlinear metasurface, nonlinear hologram, harmonic generation