http://www.cnr.it/ontology/cnr/individuo/prodotto/ID168941
Experimental characterization of NbN nanowire optical detectors with parallel stripline configuration (Articolo in rivista)
- Type
- Label
- Experimental characterization of NbN nanowire optical detectors with parallel stripline configuration (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1088/1742-6596/97/1/012265 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- A Casaburi1;2; M Ejrnaes2; O Quaranta1; A Gaggero3; F Mattioli3; R Leoni3; B
Voronov4; G Gol'tsman4; M Lisitskiy2; E Esposito2; C Nappi2; R Cristiano2 and S
Pagano1 (literal)
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- 1 Dipartimento di Fisica \"E. R. Caianiello\", Università di Salerno, Via S. Allende, 84081 Baronissi, Italy;
2 Istituto di Cibernetica \"E. Caianiello\", CNR, Campi Flegrei 34, 80078 Pozzuoli, Italy;
3 Istituto di Fotonica e Nanotechnologie, CNR, Via Cineto Romano 42, 00156 Roma, Italy;
4 Moscow State Pedagogical University, Moscow 119345, Russia; (literal)
- Titolo
- Experimental characterization of NbN nanowire optical detectors with parallel stripline configuration (literal)
- Abstract
- We have developed a novel geometrical configuration for NbN-based superconducting single photon optical detector (SSPD) that achieves two goals: a much lower intrinsic impedance, and a consequently greater bandwidth, and a much larger signal amplitude compared to the standard meandered configuration. This has been obtained by implementing a properly designed parallel stripline structure where a cascade switching mechanism occurs when one of the striplines is hit by an optical photon. The overall switching occurs synchronously and in a very short time, giving rise to a strong and fast voltage pulse. The SSPD have been realized using state of the art NbN deposition technology and e-beam lithography. The strips are 100 nm wide and 5 um long and have been realized with 4 nm NbN film on sapphire and Si substrate. We report on experimental characterization of such novel devices. The performances of the proposed novel type of SSPD are compared with standard SSPD design and results in terms of signal amplitude, risetime and effective detection area. (literal)
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