Nonlinear Metamaterial Nanophotonics

Plasmonic metamaterials and metasurfaces open up possibility to design the enhanced second- and third-order nonlinear optical properties in a desired spectral range beyond nonlinear optical response of their constituents. Here we overview second-harmonic generation and Kerr-type optical nonlinearities in various plasmonic metamaterials and their integration in nanophotonic circuitry.