Timing jitter of cascade switch superconducting nanowire single photon detectors

Ejrnaes, M. et al. (2009) Timing jitter of cascade switch superconducting nanowire single photon detectors. Applied Physics Letters, 95(13), p. 132503. (doi: 10.1063/1.3237172)

Abstract

We investigate the timing jitter in parallel superconducting NbN-nanowire single photon detectors based on a cascade switch mechanism. The measured timing jitter is asymmetric and has an oscillatory dependence on bias current. At the highest bias current the full width at half maximum was 1.5 times larger than an on-chip reference meander NbN nanowire. A physical model of the dynamics occurring during cascade switch is developed, that quantitatively accounts for our observations as a consequence of different nanowire critical currents within the detector.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Casaburi, Dr Alessandro
• Authors: Ejrnaes, M., Casaburi, A., Cristiano, R., Quaranta, O., Marchetti, S., Martucciello, N., Pagano, S., Gaggero, A., Mattioli, F., Leoni, R., Cavalier, P., and Villégier, J.-C.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Applied Physics Letters
• ISSN: 0003-6951
• Published Online: 30 September 2009