ArticleNature materials2026
Purcell-enhanced two-photon emission from a quantum dot via dark-state biexciton loading.
Article in Nature materials, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
8 authors.
Funding
Abstract
Generating light in well-defined photon-number states is central to photonic quantum technologies. While deterministic single-photon sources are well established, producing efficient two-photon states from individual emitters remains challenging. Here we demonstrate a high-efficiency two-photon emitter using the degenerate biexciton-exciton cascade in a Purcell-enhanced quantum dot-micropillar system. Leveraging polarization-selective p-shell excitation, we achieve effective biexciton loading and identify stimulated emission as a key mechanism enhancing two-photon temporal correlation. The emitter exhibits a two-photon correlation of g
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41772166What OpenQuestion holds
Registered trials
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