Quasiparticles that could herald a breakthrough in photonic technologies
Exciton-polaritons are photonic-electronic quasiparticles arising from the strong coupling of light with matter in the form of an exciton. Angle-resolved measurements of light dispersion inside structures can reveal information regarding the strength of the light-matter coupling, but their application potential has largely been neglected. Funded by the Marie Skłodowska-Curie Actions programme, the PolDev project plans to develop organic polariton devices that leverage exciton-like dispersion in strongly coupled microcavities. Researchers will create interference filters with ultra-low angular dispersion, thereby offering a new route to designing optical systems. In addition, they will use these filters to design high-quality microcavity polariton light-emitting diodes with unprecedented colour purity for display applications.