%0 Journal Article
%A Díaz García, Elena
%A Cabrera Granado, Eduardo
%A Gómez Calderón, Óscar
%T Increasing applicability of slow light in molecularaggregate nanofilms with two-exciton dynamics
%D 2016
%@ 0146-9592
%U https://hdl.handle.net/20.500.14352/23081
%X We  study  the  slow-light  performance  in  the  presence  of exciton – exciton interaction in films of linear molecular aggregates at the nanometer scale. In particular, we consider a four-level  model  to  describe  the  creation/annihilation  of two-exciton states that are relevant for high-intensity fields.Numerical  simulations  show  delays  comparable  to  those obtained for longer propagation distances in other media. Two-exciton dynamics could lead to larger fractional delays, even in presence of disorder, in comparison to the two-levelapproximation. We conclude that slow-light performance is a robust phenomenon in these systems under the increasing complexity  of  the  two-exciton  dynamics.
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