Investigation of dark counts in innovative materials for superconducting nanowire single-photon detector applications

L. Parlato; M. Ejrnaes; U. Nasti; R. Arpaia; T. Taino; T. Bauch; H. Myoren; Roman Sobolewski; F. Tafuri; F. Lombardi; R. Cristiano; G. Pepe

doi:10.1117/12.2267647

15 May 2017 Investigation of dark counts in innovative materials for superconducting nanowire single-photon detector applications

L. Parlato, M. Ejrnaes, U. Nasti, R. Arpaia, T. Taino, T. Bauch, H. Myoren, Roman Sobolewski, F. Tafuri, F. Lombardi, R. Cristiano, G. Pepe

Author Affiliations +

Proceedings Volume 10229, Photon Counting Applications 2017; 102290I (2017) https://doi.org/10.1117/12.2267647
Event: SPIE Optics + Optoelectronics, 2017, Prague, Czech Republic

Abstract

The phenomenon of dark counts in nanostripes of different superconductor systems such as high-temperature superconducting YBa₂Cu₃O_7-x and superconductor/ferromagnet hybrids consisting of either NbN/NiCu or YBa₂Cu₃O_{7- x}/L_0.7Sr_0.3MnO₃ 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 YBa₂Cu₃O_7-x, we have found that thermal activation of vortices was also, apparently, responsible for triggering dark-count signals.

Conference Presentation

Citation Download Citation

L. Parlato, M. Ejrnaes, U. Nasti, R. Arpaia, T. Taino, T. Bauch, H. Myoren, Roman Sobolewski, F. Tafuri, F. Lombardi, R. Cristiano, and G. Pepe "Investigation of dark counts in innovative materials for superconducting nanowire single-photon detector applications", Proc. SPIE 10229, Photon Counting Applications 2017, 102290I (15 May 2017); https://doi.org/10.1117/12.2267647

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available