Journal
ACS PHOTONICS
Volume 3, Issue 5, Pages 743-748Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.6b00060
Keywords
exciton; surface modes; Tamm states; J-aggregates; thin films; organic; molecular materials; plasmons
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Funding
- Leverhulme Trust
- Engineering and Physical Sciences Research Council of U.K. [EP/K041150/1]
- American University in Cairo (AUC) through a Faculty Support Research Grant
- EPSRC [EP/M024458/1, EP/M024156/1, EP/N003381/1, EP/K041150/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/M024156/1, EP/N003381/1, EP/M024458/1, EP/K041150/1] Funding Source: researchfish
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We report the first experimental observation of an excitonic optical Tamm state supported at the interface between a periodic multilayer dielectric structure and an organic dye-doped polymer layer. The existence of such states is enabled by the metal-like optical properties of the excitonic layer based on aggregated dye molecules. Experimentally determined dispersion curves, together with simulated data, including field profiles, allow us to identify the nature of these new modes. Our results demonstrate the potential of organic excitonic materials as a powerful means to control light at the nanoscale, offering the prospect of a new alternative photonic building block for nanophotonics designs based on molecular materials.
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