Ontology type: schema:ScholarlyArticle
2002-10
AUTHORSCharles Santori, David Fattal, Jelena Vučković, Glenn S. Solomon, Yoshihisa Yamamoto
ABSTRACTSingle-photon sources have recently been demonstrated using a variety of devices, including molecules1,2,3, mesoscopic quantum wells4, colour centres5, trapped ions6 and semiconductor quantum dots7,8,9,10,11. Compared with a Poisson-distributed source of the same intensity, these sources rarely emit two or more photons in the same pulse. Numerous applications for single-photon sources have been proposed in the field of quantum information, but most—including linear-optical quantum computation12—also require consecutive photons to have identical wave packets. For a source based on a single quantum emitter, the emitter must therefore be excited in a rapid or deterministic way, and interact little with its surrounding environment. Here we test the indistinguishability of photons emitted by a semiconductor quantum dot in a microcavity through a Hong–Ou–Mandel-type two-photon interference experiment13,14. We find that consecutive photons are largely indistinguishable, with a mean wave-packet overlap as large as 0.81, making this source useful in a variety of experiments in quantum optics and quantum information. More... »
PAGES594-597
http://scigraph.springernature.com/pub.10.1038/nature01086
DOIhttp://dx.doi.org/10.1038/nature01086
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/12374958
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