 Bose-Einstein condensation of photons in an optical microcavity by Jan Klaers and others

Nature 468, 545–548. The original byline credits Jan Klaers and collaborators.

The inspected author preprint, printed pp. 3–6, describes a dye-filled curved-mirror microcavity, absorption/re-emission thermalization, controlled excitation reservoir and observed condensation. Page numbering here refers to the preprint.