title: Near orthogonal launch of SPR modes in Au films.
abstract: We report the excitation of a surface plasmon resonance (SPR) close to the orthogonal axis of a gold (Au) film on borosilicate glass. Direct spectroscopic measurement of SPR shifts using different liquids are made at ∼5° incidence within a reflection spectrophotometer. The proposed mechanism to establish coupling and plasmon localization is the scattering of light able to penetrate across the film at the interfaces.
authors.forename: John
authors.initials: J
authors.lastname: Canning
authors.forename: Akib
authors.initials: A
authors.lastname: Karim
authors.forename: Nikki
authors.initials: N
authors.lastname: Tzoumis
authors.forename: Yanzhen
authors.initials: Y
authors.lastname: Tan
authors.forename: Rodolfo
authors.initials: R
authors.lastname: Patyk
authors.forename: Brant C
authors.initials: BC
authors.lastname: Gibson