Strong coupling in a microcavity LED

Abstract

Thin films of polyelectrolyte/J aggregate dye bilayers with high absorption coefficient (6 nm thick with αâ‰1.0Ã-106cm-1) inserted in an optical microcavity enable the cavity quantum electrodynamic strong coupling limit to be reached at room temperature with a coupling strength (Rabi splitting) of 265±15meV. By embedding these films in a resonant cavity organic LED structure, we demonstrate the first emissive electrically pumped exciton-polariton device. © 2005 The American Physical Society.