title: Exciton dynamics in perturbed vibronic molecular aggregates.
abstract: A site specific perturbation of a photo-excited molecular aggregate can lead to a localization of excitonic energy. We investigate this localization dynamics for laser-prepared excited states. Changing the parameters of the electric field significantly influences the exciton localization which offers the possibility for a selective control of this process. This is demonstrated for aggregates possessing a single vibrational degree of freedom per monomer unit. It is shown that the effects identified for the molecular dimer can be generalized to larger aggregates with a high density of vibronic states.
authors.affiliation: Universität Würzburg, Institut für Physikalische und Theoretische Chemie, Am Hubland , Campus Nord, Emil-Fischer-Str. 42, 97074 Würzburg, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Brüning
authors.affiliation: Universität Würzburg, Institut für Physikalische und Theoretische Chemie, Am Hubland , Campus Nord, Emil-Fischer-Str. 42, 97074 Würzburg, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Wehner
authors.affiliation: Universität Würzburg, Institut für Physikalische und Theoretische Chemie, Am Hubland , Campus Nord, Emil-Fischer-Str. 42, 97074 Würzburg, Germany.
authors.forename: J
authors.initials: J
authors.lastname: Hausner
authors.affiliation: Universität Würzburg, Institut für Physikalische und Theoretische Chemie, Am Hubland , Campus Nord, Emil-Fischer-Str. 42, 97074 Würzburg, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Wenzel
authors.affiliation: Universität Würzburg, Institut für Physikalische und Theoretische Chemie, Am Hubland , Campus Nord, Emil-Fischer-Str. 42, 97074 Würzburg, Germany.
authors.forename: V
authors.initials: V
authors.lastname: Engel