In this paper, we review theoretical and experimental research progress on timing properties of superconducting nanowire single-photon detectors, including six possible mechanisms that induce timing jitter and experiments towards ultra-low timing jitter.
This paper reviews some recent research progress in superconducting nanowire single-photon detectors (SNSPDs) at the infrared spectrum range, with particular emphasis on detection efficiency and timing jitter. For detection efficiency, we present fractal SNSPDs with reduced polarization sensitivity; for timing jitter, we present two mechanisms of device timing jitter – vortex-crossing-induced timing jitter and spatial-inhomogeneity-induced timing jitter.
This paper reviews a few novel designs of superconducting nanowire single-photon detectors (SNSPDs). For polarization-insensitive SNSPDs, we present a fractal-inspired design and a waveguide-integrated design; for lowtiming-jitter SNSPDs, we present SNSPDs integrated with current reservoirs.