Superconducting nanowire single photon detectors based on disordered NbRe films
C. Cirillo, Jin Chang, M. Caputo, Johannes W. N. Los, S. N. Dorenbos, Iman Esmaeil Zadeh, C. Attanasio
Abstract
Superconducting Nanowire Single Photon Detectors (SNSPDs) based on Nb0.15Re0.85 disordered nanowires are developed. The devices have a meander structure of wires 50–100 nm wide and cover a circular detection area with a diameter of about 10–16 μm. The main figures of merit of the detectors are extracted from a flood illumination process at 2.8 K, featuring a saturated internal efficiency up to λ= 1301 nm, recovery times between about 8 and 19 ns, and a jitter of about 35 ps. These results confirm that Nb0.15Re0.85 is a promising candidate for the realization of fast SNSPDs, as recently suggested.
Topics & Concepts
NanowireDetectorSuperconductivityJitterMaterials scienceOptoelectronicsPhotonFigure of meritPhotonicsRealization (probability)Meander (mathematics)NanotechnologyOpticsCondensed matter physicsPhysicsElectronic engineeringGeometryMathematicsEngineeringStatisticsNanowire Synthesis and ApplicationsSuperconducting and THz Device TechnologyQuantum Information and Cryptography