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

Abstract

International audienc

Plasmonic gold mushroom arrays with refractive index sensing figures of merit approaching the theoretical limit

“…When the incidence angle is in the range of 25°-31°, as marked by the black dashed lines in Fig. 3a, a Rabi splitting-type anticrossing 35,36 between D1 and D3 is observed on both the simulated and measured reflectance spectra (see Supplementary Fig. S1 for the mode exchange details).…”

Strong coupling in molecular exciton-plasmon Au nanorod array systems

“…A number of studies have demonstrated plasmon-exciton in the strong coupling limit between an organic exciton semiconductor and a surface plasmons [11,12] and localized surface plasmons geometries [13][14][15][16][17]. Studies have demonstrated that colloidal Au nanoshell-J-aggregate particles exhibit strong coupling between the localized plasmons of a nanoshell and the excitons of molecular J-aggregates adsorbed on its surface [13].…”

“…Studies have demonstrated that colloidal Au nanoshell-J-aggregate particles exhibit strong coupling between the localized plasmons of a nanoshell and the excitons of molecular J-aggregates adsorbed on its surface [13]. The interaction of an organic exciton in a J-aggregate and surface plasmon polariton modes of nanostructured hole arrays or of nanosize metallic disks with different array periods was reported to exhibit strong coupling [14][15][16]. Tuning of plasmon-exciton coupling strength has been reported for strongly coupled exciton-plasmon states in Au nanodisk arrays coated with J-aggregate molecules achieved by changing the incident angle of incoming light, rather than changing the geometry 2 of the plasmonic nanomaterial.…”

“…This offers potential to enhance or control exciton processes in excitonic systems such as organic semiconductors which offers opportunities for enhanced photonic device designs such as in light harvesting, optical sensing or artificial light sources [1,9,10]. An understanding of light mater interactions of plasmon-exciton complexes is central in fully realizing the potential of such complexes.A number of studies have demonstrated plasmon-exciton in the strong coupling limit between an organic exciton semiconductor and a surface plasmons [11,12] and localized surface plasmons geometries [13][14][15][16][17]. Studies have demonstrated that colloidal Au nanoshell-J-aggregate particles exhibit strong coupling between the localized plasmons of a nanoshell and the excitons of molecular J-aggregates adsorbed on its surface [13].…”

Surface Plasmon - Guided Mode strong coupling

“…[4]. More recently, it was demonstrated between SPs and excitons in organic semiconductors [5,6,7]. It is a phenomenon that is interesting both from the point of view of fundamental quantum physics as well as from the point of view of technology.…”