Electro‐Optic Metasurfaces Based on Barium Titanate Nanoparticle Films

A novel concept of electro‐optic switching is introduced by A. Karvounis et. al. We employ an adjacent BaTiO₃ nanoparticle film to a plasmonic metasurface to electrically control the optical reflection of a photonic metasurface dynamically. Nanoparticle films are deposited on large scale and great uniformity, while maintain optical nonlinear properties such as SHG.