Plasmonic Nanoclusters with Rotational Symmetry: Polarization-Invariant Far-Field Response vs Changing Near-Field Distribution - Rahmani, M; Yoxall, E; Hopkins, B; Sonnefraud, Y; Kivshar, Y; Hong, M; Phillips, C; Maier, SA; Miroshnichenko, AE (ACS NANO, 2013)