title: Polarisation-resolved near-field mapping of a coupled gold nanowire array.
abstract: We report direct observation of the 2D transverse near-field intensity and polarisation distribution of surface plasmon polaritons guided on metal nanowires. Quadrupolar modes are excited on an array of coupled nanowires arranged around the central glass core in a photonic crystal fibre, with lobes whose orientation depends on the polarisation state of the launched core light. The radial electric field is resolved using a polarization sensitive near-field probe in light-collection mode.
authors.affiliation: Max Planck Institute for the Science of Light, Germany. patrick.uebel@mpl.mpg.de
authors.forename: Patrick
authors.initials: P
authors.lastname: Uebel
authors.forename: Markus A
authors.initials: MA
authors.lastname: Schmidt
authors.forename: Howard W
authors.initials: HW
authors.lastname: Lee
authors.forename: Philip St J
authors.initials: PS
authors.lastname: Russell
mesh_terms: D003460:Crystallization / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D012031:Refractometry / Q000379:methods*; D020349:Surface Plasmon Resonance / Q000379:methods*
chemical_list: D006046:Gold