Investigation of dark counts in innovative materials for superconducting nanowire single-photon detector applications
Paper in proceedings, 2017

The phenomenon of dark counts in nanostripes of different superconductor systems such as high-temperature superconducting YBa 2 Cu 3 O 7-x and superconductor/ferromagnet hybrids consisting of either NbN/NiCu or YBa 2 Cu 3 O 7-x /L 0.7 Sr 0.3 MnO 3 bilayers have been investigated. For NbN/NiCu the rate of dark-count transients have been reduced with respect to pure NbN nanostripes and the events were dominated by a single vortex entry from the edge of the stripe. In the case of nanostripes based on YBa 2 Cu 3 O 7-x , we have found that thermal activation of vortices was also, apparently, responsible for triggering dark-count signals.

hybrid materials

superconducting photon detectors

dark counts

high-critical temperature superconductors

Single-photon detectors

Author

L. Parlato

Superconductors, oxides and other innovative materials and devices

Universita degli Studi di Napoli Federico II

M. Ejrnaes

Superconductors, oxides and other innovative materials and devices

U. Nasti

University of Glasgow

Riccardo Arpaia

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

T. Taino

Saitama University

Thilo Bauch

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

H. Myoren

Saitama University

R. Sobolewski

University of Rochester

F. Tafuri

Superconductors, oxides and other innovative materials and devices

Universita degli Studi di Napoli Federico II

Floriana Lombardi

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

R. Cristiano

Superconductors, oxides and other innovative materials and devices

G. P. Pepe

Universita degli Studi di Napoli Federico II

Superconductors, oxides and other innovative materials and devices

Proceedings of SPIE - The International Society for Optical Engineering

0277786X (ISSN) 1996756X (eISSN)

Vol. 10229 Article no 102290I- 102290I

Subject Categories

Atom and Molecular Physics and Optics

DOI

10.1117/12.2267647

ISBN

9781510609594

More information

Latest update

7/20/2018