title: Absorption enhancement of molecules in the weak plasmon-exciton coupling regime.
abstract: We report on the experimental and theoretical investigations of enhancing the optical absorption of organic molecules in the weak plasmon-exciton coupling regime. A metal-organic hybrid structure consisting of dye molecules embedded in the polymer matrix is placed in close vicinity to thin metal films. We have observed a transition from a weak coupling regime to a strong coupling one as the thickness of the metal layer increases. The results indicate that absorption of the self-assembled J-aggregate nanostructures can be increased in the weak plasmon-exciton coupling regime and strongly quenched in the strong coupling regime. A theoretical model based on the transfer-matrix method qualitatively confirms the experimental results obtained from polarization-dependent spectroscopic reflection measurements.
authors.forename: Sinan
authors.initials: S
authors.lastname: Balci
authors.forename: Ertugrul
authors.initials: E
authors.lastname: Karademir
authors.forename: Coskun
authors.initials: C
authors.lastname: Kocabas
authors.forename: Atilla
authors.initials: A
authors.lastname: Aydinli