Multi-scheme approach for efficient surface plasmon polariton generation in metallic conical tips on AFM-based cantilevers De Angelis, F. ; Zaccaria, R. Proietti ; Francardi, M. ; Liberale, C. ; Di Fabrizio, E. Abstract Publication: Optics Express Pub Date: October 2011 DOI: 10.1364/OE.19.022268 Bibcode: 2011OExpr..1922268D