title: Strong light-molecule coupling on plasmonic arrays of different symmetry.
abstract: The strong coupling of porphyrin J-aggregates to plasmonic nanostructures of different symmetry is investigated. The nanostructures of higher symmetry show the strongest interaction with the molecular layer, suggesting that surface plasmon mode degeneracy plays an important role in the coupling efficiency. At high coupling strengths a new, weakly dispersive mode appears which has recently been predicted theoretically to be due to long-range energy transfer between molecules mediated by surface plasmons. These findings point to new ways for optimizing strong coupling and thereby realize its full potential for molecular and material science.
authors.affiliation: ISIS, Université de Strasbourg and CNRS (UMR 7006), Strasbourg, France.
authors.forename: Adi
authors.initials: A
authors.lastname: Salomon
authors.forename: Shaojun
authors.initials: S
authors.lastname: Wang
authors.forename: James A
authors.initials: JA
authors.lastname: Hutchison
authors.forename: Cyriaque
authors.initials: C
authors.lastname: Genet
authors.forename: Thomas W
authors.initials: TW
authors.lastname: Ebbesen