Optical properties of magnetic-plasmonic nanoparticle multilayers

Magnetic-plasmonic materials are an interesting class of materials for both fundamental and applied research. Knowledge of the optical properties and their origin in the materials is a must. Using a layer-by-layer method, we fabricated magnetic-plasmonic nanoparticle multilayers and measured their optical properties. Discrete dipole approximation calculations to model the optical properties of such materials allow us to understand the observed optical features. Comparing experimental and theoretical results provides us with a detailed insight in the build-up of the nanoparticle multilayers and shows that nanoparticles of the added layers fill holes in previous layers and improve the quality of the sample.status: publishe