Recent advances in planar optics: from plasmonic to dielectric metasurfaces

This article reviews recent progress leading to the realization of planar optical components made of a single layer of phase shifting nanostructures. After introducing the principles of planar optics and discussing earlier works on subwavelength diffractive optics, we introduce a classification of metasurfaces based on their different phase mechanisms and profiles and a comparison between plasmonic and dielectric metasurfaces. We place particular emphasis on the recent developments on electric and magnetic field control of light with dielectric nanostructures and highlight the physical mechanisms and designs required for efficient all-dielectric metasurfaces. Practical devices of general interest such as…

• CS
  Charles Stark Draper Laboratory

  Award: SC001-0000000959
• ER
  European Research Council

  Award: 639109
• AF
  Air Force Office of Scientific Research

  Awards: AFOSR FA9550-16-1-0156, AFOSR MURI FA9550-14-1-0389