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Superconducting single-photon detectors integrated with diamond nanophotonic circuits

Rath, P.; Kahl, O.; Ferrari, S.; Sproll, F.; Lewes-Malandrakis, G.; Brink, D.; Ilin, K.; Siegel, M.; Nebel, C.; Pernice, W.

Photonic quantum technologies hold promise to repeat the success of integrated nanophotonic circuits in non-classical applications. Using linear optical elements, quantum optical computations can be performed with integrated optical circuits and can therefore overcome the existing limitations in terms of scalability. In addition to passive optical devices for realizing photonic quantum gates, active elements, such as single-photon sources and single-photon detectors, are essential ingredients for future optical quantum circuits. Material systems that allow for the monolithic integration of all components are particularly attractive, including III-V semiconductors, silicon and diamond. Here, we demonstrate nanophotonic integrated circuits made from high-quality polycrystalline diamond thin films in combination with on-chip single-photon detectors. By using superconducting nanowires that are coupled evanescently to traveling waves, we achieve high detection efficiencies of up to 66% as well as low dark count rates and a timing resolution of 190 ps. Our devices are fully scalable and hold promise for functional diamond photonic quantum devices.

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DOI: 10.5445/IR/1000049913
DOI: 10.1038/lsa.2015.111
Zitationen: 48
Web of Science
Zitationen: 50
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2015
Sprache Englisch
Identifikator ISSN: 2047-7538
KITopen-ID: 1000049913
HGF-Programm 43.23.01 (POF III, LK 01) Advanced Optical Lithography+Microscopy
Erschienen in Light: Science and Applications
Verlag Springer Nature [academic journals on]
Band 4
Seiten e338
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagwörter diamond nanophotonics; integrated optics; superconducting single-photon detectors
Nachgewiesen in Web of Science
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