Photonic-Plasmonic Mode Engineering in Metallo-Dielectric Nanoparticle Arrays

Nanoparticle arrays containing metallic and dielectric nanoparticles at defined locations provide unique opportunities for controlling light field distributions in both spatial and frequency domain as well as for engineering intricate phase landscapes. We will introduce in this paper novel template guided self-assembly approaches that facilitate the integration of electromagnetically strongly coupled metallic nanoparticles and dielectric (or semiconductor) nanoparticles at separate, pre-defined locations. The assembly approach facilitates the creation of sub-5 nm gaps between plasmonic nanoparticles and, at the same time, allows the realization of tens to hundreds of nanometer separations between metallic and dielectric components. The electromagnetic working principles of the resulting optoplasmonic hetero-nanoparticle arrays and potential application fields of these multiscaled electromagnetic materials will be discussed.