title: Parallel collective resonances in arrays of gold nanorods.
abstract: In this work we discuss the excitation of parallel collective resonances in arrays of gold nanoparticles. Parallel collective resonances result from the coupling of the nanoparticles localized surface plasmons with diffraction orders traveling in the direction parallel to the polarization vector. While they provide field enhancement and delocalization as the standard collective resonances, our results suggest that parallel resonances could exhibit greater tolerance to index asymmetry in the environment surrounding the arrays. The near- and far-field properties of these resonances are analyzed, both experimentally and numerically.
authors.affiliation: IMM-Instituto de Microelectrónica de Madrid (CNM-CSIC) , Isaac Newton 8, PTM, E-28760 Tres Cantos, Madrid, Spain.
authors.forename: Alan
authors.initials: A
authors.lastname: Vitrey
authors.forename: Lionel
authors.initials: L
authors.lastname: Aigouy
authors.forename: Patricia
authors.initials: P
authors.lastname: Prieto
authors.forename: José Miguel
authors.initials: JM
authors.lastname: García-Martín
authors.forename: María U
authors.initials: MU
authors.lastname: González