Strong exciton–photon coupling in organic materials

The study of strong exciton–photon coupling in organic materials has progressed at a rapid pace since the first observation of microcavity polaritons in tetra-(2,6-t-butyl)phenol-porphyrin zinc less than 10 years ago. The field is driven by the potential for revolutionary optoelectronic devices based on polaritonic phenomena such as ultrafast optical amplifiers and switches, structures with enhanced nonlinear optical properties, and coherent polariton light emitters, known as polariton lasers. This review examines recent experimental advances related to the general understanding of strong coupling in a range of small molecular weight and polymeric organic materials.