NOPT – New polishing techniques for scalable, light-weighted mirrors of different materials Sebastiano Spinelli, Luigina Arcangeli, Ruben Mazzoleni, Massimiliano Rossi, Marco Terraneo and Roman Windpassinger EPJ Web Conf., 215 (2019) 03002 Published online: 10 September 2019 DOI: 10.1051/epjconf/201921503002