title: Multiple surface plasmon modes for a colloidal solution of nanoporous gold nanorods and their comparison to smooth gold nanorods.
abstract: The paper represents a novel approach to investigating localized surface plasmon (LSP) resonance modes of nanoporous Au nanorods (NRs) in a solution phase with control over surface morphology. Au NRs, which have distinctive features such as nanopores and ligaments, showed interesting LSP resonance modes depending on the surface morphology and the total length of the structure. Compared with the analogous smooth surface NRs, the LSP modes of nanoporous NRs are red-shifted, which can be interpreted as a longer effective rod length and larger amplitude of plasmon oscillation.
authors.affiliation: Department of Chemistry, BK21 School of Chemical Materials Science, Sungkyunkwan University, Suwon 440-746, South Korea.
authors.forename: Hye-Mi
authors.initials: HM
authors.lastname: Bok
authors.forename: Kevin L
authors.initials: KL
authors.lastname: Shuford
authors.forename: Sungwan
authors.initials: S
authors.lastname: Kim
authors.forename: Seong Kyu
authors.initials: SK
authors.lastname: Kim
authors.forename: Sungho
authors.initials: S
authors.lastname: Park