title: Field localization in very small aperture lasers studied by apertureless near-field microscopy.
abstract: Localized surface plasmon polaritons (SSPs) have been observed on very small aperture lasers using apertureless near-field microscopy. Fields around multiple apertures are shown to result from interferences of SPP point sources at each aperture and optical fields. The near-field optical pattern around a single aperture indicates the interference of SPPs with their scattered counterparts. Near-field measurements also confirmed a preferred orientation of the rectangular aperture waveguide for the signal localization in very small aperture lasers.
authors.affiliation: Department of Chemistry, University of Pittsburgh, Pennsylvania 15260, USA.
authors.forename: Larissa
authors.initials: L
authors.lastname: Stebounova
authors.forename: Fang
authors.initials: F
authors.lastname: Chen
authors.forename: James
authors.initials: J
authors.lastname: Bain
authors.forename: T E
authors.initials: TE
authors.lastname: Schlesinger
authors.forename: Shell
authors.initials: S
authors.lastname: Ip
authors.forename: Gilbert C
authors.initials: GC
authors.lastname: Walker