2017 |
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Ferrari S, Kovalyuk V, Hartmann W, Vetter A, Kahl O, Lee C, et al. Hot-spot relaxation time current dependence in niobium nitride waveguide-integrated superconducting nanowire single-photon detectors. Opt Express. 2017;25(8):8739–50.
Abstract: We investigate how the bias current affects the hot-spot relaxation dynamics in niobium nitride. We use for this purpose a near-infrared pump-probe technique on a waveguide-integrated superconducting nanowire single-photon detector driven in the two-photon regime. We observe a strong increase in the picosecond relaxation time for higher bias currents. A minimum relaxation time of (22 +/- 1)ps is obtained when applying a bias current of 50% of the switching current at 1.7 K bath temperature. We also propose a practical approach to accurately estimate the photon detection regimes based on the reconstruction of the measured detector tomography at different bias currents and for different illumination conditions.
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2012 |
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Minaeva O, Fraine A, Korneev A, Divochiy A, Goltsman G, Sergienko A. High resolution optical time-domain reflectometry using superconducting single-photon detectors. In: Frontiers in Opt. 2012/Laser Sci. XXVIII. Optical Society of America; 2012. Fw3a.39.
Abstract: We discuss the advantages and limitations of single-photon optical time-domain reflectometry with superconducting single-photon detectors. The higher two-point resolution can be achieved due to superior timing performance of SSPDs in comparison with InGaAs APDs.
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2006 |
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Dauler EA, Kerman AJ, Robinson BS, Yang JKW, Voronov BM, Gol’tsman GN, et al. Achieving high counting rates in superconducting nanowire single-photon detectors. In: CLEO/QELS. Optical Society of America; 2006. JTuD3 (1 to 2).
Abstract: Kinetic inductance is determined to be the primary limitation to the counting rate of superconducting nanowire single-photon counters. Approaches for overcoming this limitation will be discussed.
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2003 |
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Verevkin A, Slysz W, Pearlman A, Zhang J, Sobolewski R, Okunev O, et al. Real-time GHz-rate counting of infrared photons using nanostructured NbN superconducting detectors. In: CLEO/QELS. Optical Society of America; 2003. CThM8.
Abstract: We demonstrate that our ultrathin, nanometer-width NbN superconducting single-photon detectors are capable of above 1-GHz-frequency, real-time counting of near-infrared photons. The measured system jitter of the detector is below 15 ps.
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1970 |
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Teich MC. Chapter 9. Coherent detection in the infrared. NY: Academic Press Inc.; 1970. p. 361–407. (Semiconductors and semimetals; vol 5).
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