title: Strong plasmon-exciton coupling in a hybrid system of gold nanostars and J-aggregates.
abstract: Hybrid materials formed by plasmonic nanostructures and J-aggregates provide a unique combination of highly localized and enhanced electromagnetic field in metal constituent with large oscillator strength and extremely narrow exciton band of the organic component. The coherent coupling of localized plasmons of the multispiked gold nanoparticles (nanostars) and excitons of JC1 dye J-aggregates results in a Rabi splitting reaching 260 meV. Importantly, broad absorption features of nanostars extending over a visible and near-infrared spectral range allowed us to demonstrate double Rabi splitting resulting from the simultaneous coherent coupling between plasmons of the nanostars and excitons of J-aggregates of two different cyanine dyes.
authors.affiliation: Centro de Física de Materiales (MPC, CSIC-UPV/EHU), Donostia International Physics Center (DIPC), Po Manuel de Lardizabal 5, Donostia-San Sebastian 20018, Spain. yury.rakovich@ehu.es.
authors.forename: Dzmitry
authors.initials: D
authors.lastname: Melnikau
authors.forename: Diana
authors.initials: D
authors.lastname: Savateeva
authors.forename: Andrey
authors.initials: A
authors.lastname: Susha
authors.forename: Andrey L
authors.initials: AL
authors.lastname: Rogach
authors.forename: Yury P
authors.initials: YP
authors.lastname: Rakovich