Plasmonic properties of gold nanoparticles covered by silicon suboxide thin film Evgeniy Baranov, Alexandr Zamchiy, Aleksey Safonov, Sergey Starinskiy and Sergey Khmel EPJ Web Conf., 159 (2017) 00003 Published online: 25 October 2017 DOI: 10.1051/epjconf/201715900003