RT Journal Article
T1 Tunable slow- and fast-light devices based on molecular-aggregate nanofilms
A1 Díaz García, Elena
A1 Villas, A.
A1 Cabrera Granado, Eduardo
A1 Calderon, O. G.
AB We study the tunability of nanofilms composed of linear molecular aggregates for slow- and fast-light performance. In order to describe a wide range of intensity field regimes, we consider a two-exciton model for the molecular aggregate where exciton creation or annihilation may occur. Our simulations show fractional delays and advancements of the order of those found in longer propagating media. This nanometric device presents two functionalities: (i) it allows the existence of slow or fast light in a different bandwidth of pulsed  signals and (ii) such dual performance can be tuned by a small perturbation of the input signal amplitude for a fixed pulse temporal width. Both effects are tested under the usual presence of disorder in these molecular systems. This study concludes that a molecular-aggregate nanofilm presents a wide control of group velocity in the GHz and THz bandwidths.
PB Amer Physical Soc
SN 2469-9926
YR 2018
FD 2018-10-09
LK https://hdl.handle.net/20.500.14352/12931
UL https://hdl.handle.net/20.500.14352/12931
LA eng
NO ©2018 American Physical SocietyThis research has been supported by Ministerio de Economía y Competitividad (MINECO) (MAT2013-46308, MAT2016-75955, FIS2013-41709-P, MAT2017-8 3111-R).
NO Ministerio de Economía y Competitividad (MINECO)
DS Docta Complutense
RD 21 abr 2025