Fabrication and optical properties of large-scale arrays of gold nanocavities based on rod-in-a-tube coaxials - Murphy,A; Sonnefraud,Y; Krasavin,AV; Ginzburg,P; Morgan,F; McPhillips,J; Wurtz,G; Maier,SA; Zayats,AV; Pollard,R (APPLIED PHYSICS LETTERS, 2013)