Dipolar second order nonlinear effects from gold nano-antennas by controlling radiation phase

Sylvain D Gennaro, Giannini Vincenzo, Themistoklis P H Sidiropoulos, Miguel Navarro-Cia, Stefan A. Maier, Rupert F. Oulton

Research output: Contribution to conference (unpublished)Paperpeer-review


A recurring theme in nanophotonics is the ability of metal nanostructures to imbue artificial materials with new function. Here we explore metallic nano-antennas as the building blocks of second order nonlinear optical metamaterials. While nonlinear effects in natural materials must gradually accumulate weak nonlinearity across macroscopic crystal dimensions, a small volume of metamaterial, and even isolated antennas, can create surprisingly strong effects. We show that the nonlinear selection rules that typically prevent dipolar SHG from nano-antennas can be engineered so they effectively radiate SHG. This provides access to other second order optical processes, which we have recently observed.
Original languageEnglish
Publication statusPublished - Aug 2017
EventSPIE: Optics + Photonics: Nanoscience + Engineering 2017: Active Photonic Platforms IX - San Diego Convention Center, San Diego, California, United States
Duration: 6 Aug 201710 Aug 2017


ConferenceSPIE: Optics + Photonics: Nanoscience + Engineering 2017
Country/TerritoryUnited States
CitySan Diego, California


  • nanoantenna
  • plasmonic
  • harmonic generation


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