Large-Area Superconducting Nanowire Single-Photon Detectors for Operation at Wavelengths up to 7.4 μm.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.1c05012
Abstract: The optimization of superconducting thin-films has pushed the sensitivity of superconducting nanowire single-photon detectors (SNSPDs) to the mid-infrared (mid-IR). Earlier demonstrations have shown that straight tungsten silicide nanowires can achieve unity internal detection efficiency (IDE)… read more here.
Keywords: photon detectors; area; nanowire single; superconducting nanowire ... See more keywords
Hotspot relaxation time of NbN superconducting nanowire single-photon detectors on various substrates
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-20035-7
Abstract: Hotspot relaxation time (τth) is one of the essential parameter which defines the maximum count rate of superconducting nanowire single-photon detectors (SNSPDs). We studied the τth for NbN-based SNSPDs on various substrates using the two-photon… read more here.
Keywords: hotspot relaxation; relaxation time; photon; superconducting nanowire ... See more keywords
Vortex-crossing-induced timing jitter of superconducting nanowire single-photon detectors
Sign Up to like & getrecommendations! Published in 2017 at "Applied Physics Letters"
DOI: 10.1063/1.4997930
Abstract: We investigate the timing properties of single-photon-triggered vortex (or anti-vortex) crossing in a current-biased superconducting nanowire and find that the time delays caused in the vortex-crossing process vary with the transverse positions on the nanowire… read more here.
Keywords: single photon; vortex crossing; superconducting nanowire; timing jitter ... See more keywords
Intrinsically-limited timing jitter in molybdenum silicide superconducting nanowire single-photon detectors
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Physics"
DOI: 10.1063/1.5113748
Abstract: Recent progress in the development of superconducting nanowire single-photon detectors (SNSPDs) has delivered excellent performances, and has had a great impact on a range of research fields. The timing jitter, which denotes the temporal resolution… read more here.
Keywords: jitter; nanowire single; superconducting nanowire; single photon ... See more keywords
A superconducting nanowire binary shift register
Sign Up to like & getrecommendations! Published in 2023 at "Applied Physics Letters"
DOI: 10.1063/5.0144685
Abstract: We present a design for a superconducting nanowire binary shift register, which stores digital states in the form of circulating supercurrents in high-kinetic-inductance loops. Adjacent superconducting loops are connected with nanocryotrons, three-terminal electrothermal switches, and… read more here.
Keywords: nanowire binary; shift register; superconducting nanowire; binary shift ... See more keywords
An all-day lidar for detecting soft targets over 100 km based on superconducting nanowire single-photon detectors
Sign Up to like & getrecommendations! Published in 2021 at "Superconductor Science and Technology"
DOI: 10.1088/1361-6668/abd576
Abstract: It is a big challenge for lidar to detect soft targets over long distances in the atmosphere due to the low reflection of soft targets and the strong atmospheric attenuation. In this paper, we propose… read more here.
Keywords: photon; soft targets; day lidar; nanowire single ... See more keywords
Multilayered Heater Nanocryotron: A Superconducting-Nanowire-Based Thermal Switch
Sign Up to like & getrecommendations! Published in 2020 at "Physical review applied"
DOI: 10.1103/physrevapplied.14.054011
Abstract: We demonstrate a multilayer nanoscale cryogenic heater-based switch (M-hTron) that uses a normal-metal heater overlapping a thin-film superconductor separated by a thin insulating layer. The M-hTron eliminates leakage current found in three-terminal superconducting switches and… read more here.
Keywords: nanowire based; switch; heater nanocryotron; nanocryotron superconducting ... See more keywords
Characterize the Speed of a Photon-Number-Resolving Superconducting Nanowire Detector
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2020.3012349
Abstract: Superconducting series nanowire single-photon detectors (SNDs) have been used for resolving photon numbers. But it can also exhibit a higher counting rate than a single superconducting nanowire single-photon detector (SNSPD), because the serial architecture allows… read more here.
Keywords: photon; detector; speed; rate ... See more keywords
A 16-Pixel Interleaved Superconducting Nanowire Single-Photon Detector Array With A Maximum Count Rate Exceeding 1.5 GHz
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Applied Superconductivity"
DOI: 10.1109/tasc.2019.2895621
Abstract: Increasing the count rate (CR) is one of the key issues in the development of superconducting nanowire single-photon detectors (SNSPDs) for different applications. This study aims to design, fabricate, and analyze a 16-pixel interleaved nanowire… read more here.
Keywords: array; count rate; superconducting nanowire; nanowire ... See more keywords
Niobium nitride plasmonic perfect absorbers for tunable infrared superconducting nanowire photodetection.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.424148
Abstract: Quantum technologies such as quantum computing and quantum cryptography exhibit rapid progress. This requires the provision of high-quality photodetectors and the ability to efficiently detect single photons. Hence, conventional avalanche photodiodes for single photon detection… read more here.
Keywords: superconducting nanowire; plasmonic perfect; niobium nitride; nitride plasmonic ... See more keywords
Fast and accurate measurement of the polarization-dependent detection efficiency of superconducting nanowire single photon detectors.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.469445
Abstract: Superconducting nanowire single photon detectors (SNSPDs) have been extensively investigated due to their superior characteristics, including high system detection efficiency, low dark count rate and short recovery time. The polarization sensitivity introduced by the meandering-type… read more here.
Keywords: nanowire single; superconducting nanowire; single photon; detection ... See more keywords