1. Characterization of parallel superconducting nanowire single photon detectors.
- Author
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M Ejrnaes, A Casaburi, O Quaranta, S Marchetti, A Gaggero, F Mattioli, R Leoni, S Pagano, and R Cristiano
- Subjects
NANOWIRES ,SUPERCONDUCTIVITY ,PHOTON detectors ,QUANTUM efficiency ,FREQUENCY response ,ELECTRICAL conductors ,NANOELECTRONICS - Abstract
Superconducting nanowire single photon detectors (SNSPDs) have been realized using an innovative parallel wire configuration. This configuration allows, at the same time, a large detection area and a fast response, with the additional advantage of large signal amplitudes. The detectors have been thoroughly characterized in terms of signal properties (amplitude, risetime and falltime), detector operation (latching and not latching) and quantum efficiency (at 850 nm). It has been shown that the parallel SNSPD is able to provide significantly higher maximum count rates for large area SNSPDs than meandered SNSPDs. Through a proper parallel wire configuration the increase in maximum count rate can be obtained without latching problems. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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