Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9586220 | Journal of Luminescence | 2005 | 5 Pages |
Abstract
We have demonstrated theoretically that radiative polaritons in an interface layer having strong excitonic response exhibit appreciable frequency dependence on an in-plane wave vector, kâ¥, in the region of the Ï-k⥠dispersion plane between the “light-lines” of the media to either side of the layer. We predict ultrafast radiative decay of such polaritons with lifetimes as low as 10 fs in slabs of organic-inorganic PbI-based layered perovskite-type semiconductors. We confirm an unusual physical feature of the radiative polaritons by determining the linear electromagnetic response of the excitonic layer to a current δ-pulse.
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Authors
V.V. Popov, T.Yu. Bagaeva, T.V. Teperik, N.J.M. Horing, Y. Ayaz,