http://www.cnr.it/ontology/cnr/individuo/prodotto/ID25295
NbN nanowire superconducting single photon detectors fabricated on MgO substrates (Articolo in rivista)
- Type
- Label
- NbN nanowire superconducting single photon detectors fabricated on MgO substrates (Articolo in rivista) (literal)
- Anno
- 2009-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1080/09500340802677050 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Bitauld D; Marsili F; Fiore A; Gaggero A; Mattioli F; Leoni R; Benkahoul M; Levy F (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- Scopu (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- COBRA Research Institute, Eindhoven University of Technology, Eindhoven, The Netherlands
Ecole Polytechnique Fe´de´rale de Lausanne, Lausanne, Switzerland
Istituto di Fotonica e Nanotecnologie (IFN), CNR, Roma, Italy (literal)
- Titolo
- NbN nanowire superconducting single photon detectors fabricated on MgO substrates (literal)
- Abstract
- We report on the fabrication and characterization of high performance nanowire superconducting single photon
detectors (SSPD) on MgO substrates. The deposition of the superconducting material (NbN) has been performed
by magnetron sputtering at 400?C. This deposition temperature is low enough to be compatible with the
fabrication on traditional optical materials like GaAs. First, SSPD meanders covering a surface of 5?5 mm2 were
characterized. We measured quantum efficiencies up to 20% at 1300 nm. Then, we used a straight 250 mm-long
NbN nanowire to perform a spatially resolved measurement of the efficiency. Both efficiency dips and peaks were
observed. The dips were correlated to lithographic defects, as confirmed by scanning electron microscopy.
Conversely, no evidence of a lithographic origin of efficiency peaks was found. (literal)
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- Autore CNR
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