Erratum to: Plasmonic molecules via glass annealing in hydrogen

Author details Institute of Physics, Nanotechnology and Telecommunications, St. Petersburg State Polytechnic University, 29 Polytechnicheskaya, St. Petersburg 195251, Russia. Department of Physics and Technology of Nanostructures, St. Petersburg Academic University, 8/3 Khlopina, St. Petersburg 194021, Russia. Institute of Photonics, University of Eastern Finland, Yliopistokatu 7, P.O. Box 111, Joensuu 80101, Finland. Ioffe Physical-Technical Institute of RAS, 26 Polytechnicheskaya, St. Petersburg 194021, Russia.