Predicting the linear optical response of J -aggregate microcavity exciton-polariton devices

Publication Type:

Journal Article

Source:

Phys. Rev. B Condens. Matter, American Physical Society, Volume 78, Issue 19, p.193305 (2008)

ISBN:

0163-1829

Keywords:

2008, 2013 and earlier

Abstract:

We demonstrate that linear dispersion theory accurately predicts the linear optical response of strongly coupled microcavity exciton-polariton
devices containing thin films of J aggregates of the cyanine dye
[5,6-dichloro-2-[3-[5,6-dichloro-1-ethyl-3-(3-sulfopropyl)-2(3H)-benzimidazolidene]-1-propenyl]-1-ethyl-3-(3-sulfopropyl)
benzimidazolium hydroxide, inner salt, sodium salt] (TDBC) when a
spectrally resolved complex index of refraction derived by model-free
quasi-Kramers-Kronig regression is used for the J-aggregate thin film. We
show that the Rabi splitting can be finely tuned through the J-aggregate
film thickness, and we estimate that the minimum linewidth of lower branch
exciton polaritons at room temperature in TDBC J-aggregate-based
structures is 8.4 meV.