Print Email Facebook Twitter Nanosecond gating of superconducting nanowire single-photon detectors using cryogenic bias circuitry Title Nanosecond gating of superconducting nanowire single-photon detectors using cryogenic bias circuitry Author Hummel, Thomas (Paderborn University) Widhalm, Alex (Paderborn University) Höpker, Jan Philipp (Paderborn University) Jöns, Klaus D. (Paderborn University) Chang, J. (TU Delft QN/Groeblacher Lab) Fognini, Andreas (Single Quantum) Steinhauer, Stephan (KTH Royal Institute of Technology) Zwiller, Val (KTH Royal Institute of Technology) Zrenner, Artur (Paderborn University) Bartley, Tim J. (Paderborn University) Date 2023 Abstract Superconducting nanowire single-photon detectors (SNSPDs) show near unity efficiency, low dark count rate, and short recovery time. Combining these characteristics with temporal control of SNSPDs broadens their applications as in active de-latching for higher dynamic range counting or temporal filtering for pump-probe spectroscopy or LiDAR. To that end, we demonstrate active gating of an SNSPD with a minimum off-to-on rise time of 2.4 ns and a total gate length of 5.0 ns. We show how the rise time depends on the inductance of the detector in combination with the control electronics. The gate window is demonstrated to be fully and freely, electrically tunable up to 500 ns at a repetition rate of 1.0 MHz, as well as ungated, free-running operation. Control electronics to generate the gating are mounted on the 2.3 K stage of a closed-cycle sorption cryostat, while the detector is operated on the cold stage at 0.8 K. We show that the efficiency and timing jitter of the detector is not altered during the on-time of the gating window. We exploit gated operation to demonstrate a method to increase in the photon counting dynamic range by a factor 11.2, as well as temporal filtering of a strong pump in an emulated pump-probe experiment. To reference this document use: http://resolver.tudelft.nl/uuid:66dd25db-778c-463b-96aa-c5d99c6d1ce3 DOI https://doi.org/10.1364/OE.472058 ISSN 1094-4087 Source Optics Express, 31 (1), 610-625 Part of collection Institutional Repository Document type journal article Rights © 2023 Thomas Hummel, Alex Widhalm, Jan Philipp Höpker, Klaus D. Jöns, J. Chang, Andreas Fognini, Stephan Steinhauer, Val Zwiller, Artur Zrenner, Tim J. Bartley Files PDF oe_31_1_610.pdf 10.69 MB Close viewer /islandora/object/uuid:66dd25db-778c-463b-96aa-c5d99c6d1ce3/datastream/OBJ/view