title: Plasmon ruler with gold nanorod dimers: utilizing the second-order resonance.
abstract: The idea of utilizing the second-order plasmon resonance of gold nanorod π-dimers for plasmon rulers is introduced. We report on a qualitatively different dependence of the plasmon resonance shift on the interparticle distance for the first- and second-order longitudinal modes of the nanorods, extending the working range of plasmon rulers up to the distance values of approximately 400 nm.
authors.forename: Maxim R
authors.initials: MR
authors.lastname: Shcherbakov
authors.forename: Anton T
authors.initials: AT
authors.lastname: Le
authors.forename: Natalia
authors.initials: N
authors.lastname: Dubrovina
authors.forename: Anatole
authors.initials: A
authors.lastname: Lupu
authors.forename: Andrey A
authors.initials: AA
authors.lastname: Fedyanin