Influence of substrate on the optical properties of non-aggregated silver nanoparticles Serhiy Z. Malynych, Nicolas L. Dmitruk and Iryna E. Moroz Eur. Phys. J. Appl. Phys., 64 2 (2013) 20402 Published online: 15 November 2013 DOI: 10.1051/epjap/2013120531