title: Plasmon resonant cavities in vertical nanowire arrays.
abstract: We investigate tunable plasmon resonant cavity arrays in paired parallel nanowire waveguides. Resonances are observed when the waveguide length is an odd multiple of quarter plasmon wavelengths, consistent with boundary conditions of node and antinode at the ends. Two nanowire waveguides satisfy the dispersion relation of a planar metal-dielectric-metal waveguide of equivalent width equal to the square field average weighted gap. Confinement factors over 10(3) are possible due to plasmon focusing in the interwire space.
authors.affiliation: Lawrence Livermore National Laboratory, Livermore, CA, USA.
authors.forename: Mihail
authors.initials: M
authors.lastname: Bora
authors.forename: Benjamin J
authors.initials: BJ
authors.lastname: Fasenfest
authors.forename: Elaine M
authors.initials: EM
authors.lastname: Behymer
authors.forename: Allan S-P
authors.initials: AS
authors.lastname: Chang
authors.forename: Hoang T
authors.initials: HT
authors.lastname: Nguyen
authors.forename: Jerald A
authors.initials: JA
authors.lastname: Britten
authors.forename: Cindy C
authors.initials: CC
authors.lastname: Larson
authors.forename: James W
authors.initials: JW
authors.lastname: Chan
authors.forename: Robin R
authors.initials: RR
authors.lastname: Miles
authors.forename: Tiziana C
authors.initials: TC
authors.lastname: Bond