KIP-Veröffentlichungen

Jahr 2025
Autor(en) Roland Jaha, Connor A. Graham-Scott, Adrian S. Abazi, Wolfram Pernice, Carsten Schuck, and Simone Ferrari
Titel Kinetic inductance and jitter dependence of intrinsic photon-number resolution in superconducting nanowire single-photon detectors
KIP-Nummer HD-KIP 25-76
KIP-Gruppe(n) F31
Dokumentart Paper
Quelle Optics Express Vol. 33, Issue 20, pp. 41869-41880 (2025)
doi https://doi.org/10.1364/OE.564311
Abstract (en)

Photon-number resolution (PNR) is crucial in quantum information technology. Time-resolved measurements applied to superconducting nanowire single-photon detectors (SNSPDs) have recently demonstrated intrinsic PNR capabilities, complementing their superior efficiency, speed, and timing precision. Using waveguide-integrated SNSPDs, we investigate the impact of nanowire kinetic inductance and system jitter on intrinsic PNR, identifying the trade-off between intrinsic PNR and detector speed. Increasing the kinetic inductance from 165?nH to 872?nH enhances the PNR quality by 12%, 31%, and 23% for the first three photon numbers but reduces the maximum count rate from 165 Mcps to 19 Mcps.

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