title: Analysis of surface plasmon interference pattern formed by optical vortex beams.
abstract: Following our recent experimental approach to excitation of surface plasmon polaritons induced by optical vortex beams [5], we report further analysis and verification of the surface plasmon interference pattern formed by locally excited standing surface plasmon polaritons in a metal/dielectric film. Our simulation model can be demonstrated by using angular spectrum representation. The generated standing interference pattern has potential as a resolution enhancement technique for sub-diffraction imaging.
authors.affiliation: Photonics Research Centre, School of Electrical & Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore.
authors.forename: P S
authors.initials: PS
authors.lastname: Tan
authors.forename: X-C
authors.initials: XC
authors.lastname: Yuan
authors.forename: J
authors.initials: J
authors.lastname: Lin
authors.forename: Q
authors.initials: Q
authors.lastname: Wang
authors.forename: R E
authors.initials: RE
authors.lastname: Burge