http://www.cnr.it/ontology/cnr/individuo/prodotto/ID25191
Characterization of Superconducting Single Photon Detectors fabricated on MgO substrates (Articolo in rivista)
- Type
- Label
- Characterization of Superconducting Single Photon Detectors fabricated on MgO substrates (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s10909-007-9692-3 (literal)
- Alternative label
R. Leoni; A. Gaggero; F. Mattioli; M.G. Castellano; P. Carelli; F. Marsili, D. Bitauld, M. Benkahoul, F. Lévy and A. Fiore (2008)
Characterization of Superconducting Single Photon Detectors fabricated on MgO substrates
in Journal of low temperature physics
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- R. Leoni; A. Gaggero; F. Mattioli; M.G. Castellano; P. Carelli; F. Marsili, D. Bitauld, M. Benkahoul, F. Lévy and A. Fiore (literal)
- Pagina inizio
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Istituto di Fotonica e Nanotecnologie, CNR, Via Cineto Romano 42, 00156 Roma, Italy
Università dell'Aquila, Monteluco di Roio, 67040 L'Aquila, Italy
Ecole Polytechnique Fédérale de Lausanne, Station 3, 1015 Lausanne, Switzerland (literal)
- Titolo
- Characterization of Superconducting Single Photon Detectors fabricated on MgO substrates (literal)
- Abstract
- Electrical and optical characterization has been performed on several
superconducting single photon detectors (SSPDs) consisting of meanders made of
ultrathin NbN films. The NbN films, with thickness ranging from 150 nm to 3 nm,
were deposited by dc magnetron sputtering on MgO substrates kept at temperature
T = 400°C. This deposition process carried out at low temperature opens the way of
monolithic integration with other photonic devices. The superconducting properties
of NbN films and the critical design parameters that affect the quantum efficiency
(QE) have been optimized. In particular, by measuring the switching current distribution
of each stripe of the meander the process uniformity has been studied. Optical
measurements on the fabricated SSPDs showed a QE ? 20% at 4.2 K for photons
with a wavelength of 1300 nm. (literal)
- Prodotto di
- Autore CNR
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