title: Resonant waveguide field enhancement in dimers.
abstract: It is shown that a waveguide mode, which exists between metal dimer particles and does not cut off, produces an enhanced electric field and hence a mechanism for surface-enhanced Raman scattering. Structures can thus be designed that provide large average field enhancement over significant length scales.
authors.affiliation: School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, USA. webb@purdue.edu
authors.forename: Kevin J
authors.initials: KJ
authors.lastname: Webb
authors.forename: Jia-Han
authors.initials: JH
authors.lastname: Li