Giant Rabi splitting between localized mixed plasmon-exciton states in a two-dimensional array of nanosize metallic disks in an organic semiconductor

Joël Bellessa (1, 2) , C. Symonds (2) , Kevin Vynck (1) , A. Lemaitre (3) , A. Brioude (4) , Luc Beaur (1) , J. C. Plenet (2) , P. Viste (2) , Didier Felbacq (1) , E. Cambril (3) , Pierre Valvin (1)

1 GES - Groupe d'étude des semiconducteurs
2 LPMCN - Laboratoire de Physique de la Matière Condensée et Nanostructures
3 LPN-CNRS, Route de Nozay, 91460 Marcoussis, France
4 LMI - Laboratoire des Multimatériaux et Interfaces

We study localized surface plasmons in strong coupling with excitons of organic semiconductors. The plasmons are localized in lithographed silver nanodisks organized in square array. A giant Rabi splitting energy of 450 meV is obtained, and typical behaviors of mixed states, i.e., anticrossing of their energies and crossing of their linewidths, are observed. Three-dimensional finite-difference time-domain simulations and coupled oscillator calculations are used to analyze and corroborate the experimental results.

Mots clés: exciton; nanoparticles; surface plasmon; semiconductor; giant rabi splitting; silver

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Joël Bellessa, C. Symonds, Kevin Vynck, A. Lemaitre, A. Brioude, et al.. Giant Rabi splitting between localized mixed plasmon-exciton states in a two-dimensional array of nanosize metallic disks in an organic semiconductor. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2009, 80 (3), pp.033303. ⟨10.1103/PhysRevB.80.033303⟩. ⟨hal-00437967⟩