Chapter 15 deals with exciton-polaritons. Starting from the polariton creation operator, a many-body formalism analogous to the one for excitons is constructed. In particular, the chapter identifies a novel photon-assisted exchange scattering that has similarity with the exchange interaction scattering existing for Frenkel excitons and for Cooper pairs. The chapter further discusses microscopic derivations of exciton-polaritons; these derivations depend on approximations that are made concerning photon-semiconductor interaction. The chapter also points out the intrinsic many-body nature of a “single” polariton for photons not close to photon-exciton resonance. Microcavity polaritons and the crucial role of photon confinement in the polariton dispersion relation are also discussed.
Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.
If you think you should have access to this title, please contact your librarian.