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A silicon carbide r...
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Castelletto, S.RMIT University, Australia
(author)
A silicon carbide room-temperature single-photon source
- Article/chapterEnglish2014
Publisher, publication year, extent ...
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2013-11-17
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Nature Publishing Group,2014
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:liu-104643
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-104643URI
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https://doi.org/10.1038/nmat3806DOI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Over the past few years, single-photon generation has been realized in numerous systems: single molecules(1), quantum dots(2-4), diamond colour centres5 and others(6). The generation and detection of single photons play a central role in the experimental foundation of quantum mechanics(7) and measurement theory(8). An efficient and high-quality single-photon source is needed to implement quantum key distribution, quantum repeaters and photonic quantum information processing(9). Here we report the identification and formation of ultrabright, room-temperature, photostable single-photon sources in a device-friendly material, silicon carbide (SiC). The source is composed of an intrinsic defect, known as the carbon antisite-vacancy pair, created by carefully optimized electron irradiation and annealing of ultrapure SiC. An extreme brightness (2 x 10(6) counts s(-1)) resulting from polarization rules and a high quantum efficiency is obtained in the bulk without resorting to the use of a cavity or plasmonic structure. This may benefit future integrated quantum photonic devices(9).
Subject headings and genre
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TECHNOLOGY
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TEKNIKVETENSKAP
Added entries (persons, corporate bodies, meetings, titles ...)
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Johnson, B. C.University of Melbourne, Australia Japan Atom Energy Agency, Japan
(author)
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Ivády, ViktorLinköpings universitet,Teoretisk Fysik,Tekniska högskolan(Swepub:liu)vikiv58
(author)
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Stavrias, N.University of Melbourne, Australia
(author)
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Umeda, T.University of Tsukuba, Japan
(author)
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Gali, A.Hungarian Academic Science, Hungary Budapest University of Technology and Econ, Hungary
(author)
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Ohshima, T.Japan Atom Energy Agency, Japan
(author)
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RMIT University, AustraliaUniversity of Melbourne, Australia Japan Atom Energy Agency, Japan
(creator_code:org_t)
Related titles
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In:Nature Materials: Nature Publishing Group13:2, s. 151-1561476-11221476-4660
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