title: Remote grating-assisted excitation of narrow-band surface plasmons.
abstract: We show, based on theoretical analysis and realistic simulations, how a grating embedded in a dielectric substrate can excite surface plasmon polaritons (SPPs) on the top side of a flat metal film far removed from the grating. This remote SPP excitation is characterized by a narrow spectral bandwidth and a high near-field intensity relative to the standard approach for exciting SPPs. The simplicity of the structure and the fact that it requires only normally incident light should make it relevant to the many applications that benefit from high quality SPPs on a flat metal film.
authors.affiliation: Center for Computation and Technology, Louisiana State University, 216 Johnston Hall, Baton Rouge, Louisiana 70803, USA. twlee@cct.lsu.edu
authors.forename: Tae-Woo
authors.initials: TW
authors.lastname: Lee
authors.forename: Stephen K
authors.initials: SK
authors.lastname: Gray