Nonlinear Fano-Resonant Dielectric Metasurfaces

Strong nonlinear light-matter interaction is highly sought-after for a variety of applications including lasing and all-optical light modulation. Recently, resonant plasmonic structures have been considered promising candidates for enhancing nonlinear optical processes due to their ability to greatly enhance the optical near-field; however, their small mode volumes prevent the inherently large nonlinear susceptibility of the metal from being efficiently exploited. Here, we present an alternative approach that utilizes a Fano-resonant silicon metasurface. The metasurface results in strong near-field enhancement within the volume of the silicon resonator while minimizing two photon absorption. We measure a third…

• OO
  Office of Naval Research

  Award: N00014-14-1-0475
• DO
  Division of Electrical, Communications and Cyber Systems

  Award: ECCS-1351334