Ultrafast time measurements by time-correlated single photon counting coupled with superconducting single photon detector

Shcheslavskiy, Vladislav I.; Morozov, Pavel V.; Divochiy, A.; Vakhtomin, Yu. B.; Смирнов, К. В.; Becker, Wolfgang

doi:10.1063/1.4948920

Cited by 66 publications

(41 citation statements)

References 27 publications

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“…For high bias currents, the noise-induced jitter becomes very small, an improvement in the amplification chain could possibly reduce it even more [18,22], which could potentially lead to system jitters below 20 ps. We note that the intrinsic jitter j int strongly depends on the applied bias current.…”

mentioning

confidence: 99%

High-detection efficiency and low-timing jitter with amorphous superconducting nanowire single-photon detectors

Caloz

Perrenoud

Autebert

et al. 2018

Applied Physics Letters

103

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Recent progress in the development of superconducting nanowire single-photon detectors (SNSPDs) made of amorphous material has delivered excellent performances, and has had a great impact on a range of research fields. Despite showing the highest system detection efficiency (SDE) ever reported with SNSPDs, amorphous materials typically lead to lower critical currents, which impacts on their jitter performance. Combining a very low jitter and a high SDE remains a challenge. Here, we report on highly efficient superconducting nanowire single-photon detectors based on amorphous MoSi, combining system jitters as low as 26 ps and a SDE of 80% at 1550 nm. We also report detailed observations on the jitter behaviour, which hints at intrinsic limitations and leads to practical implications for SNSPD performance.

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mentioning

confidence: 99%

High-detection efficiency and low-timing jitter with amorphous superconducting nanowire single-photon detectors

Caloz

Perrenoud

Autebert

et al. 2018

Applied Physics Letters

103

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“…Also a high local oscillator (LO) power greater than 1 mW is required for the SBD heterodyne detection 39 . Unlike SBDs, the superconducting HEB is a thermal detector only working at cryogenic temperature below 5 K. However, it is enough sensitive for single photon detection 37 , while the NEP of SBDs lies in 10 −10 W/ level. In order to use a HEB as a mixer, it has to be fast.…”

Section: Discussionmentioning

confidence: 99%

6.2-GHz modulated terahertz light detection using fast terahertz quantum well photodetectors

Wan

Tan

et al. 2017

Sci Rep

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The fast detection of terahertz radiation is of great importance for various applications such as fast imaging, high speed communications, and spectroscopy. Most commercial products capable of sensitively responding the terahertz radiation are thermal detectors, i.e., pyroelectric sensors and bolometers. This class of terahertz detectors is normally characterized by low modulation frequency (dozens or hundreds of Hz). Here we demonstrate the first fast semiconductor-based terahertz quantum well photodetectors by carefully designing the device structure and microwave transmission line for high frequency signal extraction. Modulation response bandwidth of gigahertz level is obtained. As an example, the 6.2-GHz modulated terahertz light emitted from a Fabry-Pérot terahertz quantum cascade laser is successfully detected using the fast terahertz quantum well photodetector. In addition to the fast terahertz detection, the technique presented in this work can also be used for optically characterizing the frequency stability of terahertz quantum cascade lasers, heterodyne detections and photomixing applications.

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“…where j setup includes the laser pulse width and measurement imprecisions, j noise is the contribution from the amplification and electronic parts, j intrinsic includes the timing variation of the hotspot itself, and j geometric is linked to the path the signal has to propagate depending on the photon absorption location in the nanowire 19 . a) Electronic mail: misael.caloz@unige.ch A wide range of values have been reported for different geometries and materials, typically from few to hundreds of picoseconds 14,18,20,21 . A record value of 2.7 ps at 400 nm wavelength have been recently achieved with a NbN device 22 , which demonstrates that there is still room for improvements.…”

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confidence: 99%

Intrinsically-limited timing jitter in molybdenum silicide superconducting nanowire single-photon detectors

Caloz

Korzh

Ramirez

et al. 2019

Journal of Applied Physics

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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 of the detection, is a crucial parameter for many applications. Despite extensive work since their apparition, the lowest jitter achievable with SNSPDs is still not clear, and the origin of the intrinsic limits is not fully understood. Understanding its intrinsic behaviour and limits is a mandatory step toward improvements. Here, we report our experimental study on the intrinsically-limited timing jitter in molybdenum silicide (MoSi) SNSPDs. We show that to reach intrinsic jitter, several detector properties such as the latching current and the kinetic inductance of the devices have to be understood. The dependence on the nanowire cross-section and the energy dependence of the intrinsic jitter are exhibited, and the origin of the limits are explicited. System timing jitter of 6.0 ps at 532 nm and 10.6 ps at 1550 nm photon wavelength have been obtained.Since their first demonstration 1 , superconducting nanowire single-photon detectors (SNSPDs) have emerged as a key technology for optical quantum information processing 2 . Their low dark count rate, fast response time, small jitter, and high efficiency favours their use in various demanding quantum optics applications such as quantum key distribution 3 , quantum networking 4 , device-independent quantum information processing 5 , deep-space optical communication 6 , IR-imaging 7,8 , and integration in photonic circuits 9-11 .One advance in the SNSPD field has been the introduction of amorphous superconductors such as tungsten silicide (WSi) 12 and molybdenum silicide (MoSi) [13][14][15][16] . SNSPDs based on these materials currently have the highest reported system detection efficiencies (SDE) (93% for WSi 12 ). Their amorphous properties makes them materials of choice for applications where the film quality and yield are crucial, such as multi-mode coupled SNSPDs, or large arrays 17 .

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Ultrafast time measurements by time-correlated single photon counting coupled with superconducting single photon detector

Cited by 66 publications

References 27 publications

High-detection efficiency and low-timing jitter with amorphous superconducting nanowire single-photon detectors

High-detection efficiency and low-timing jitter with amorphous superconducting nanowire single-photon detectors

6.2-GHz modulated terahertz light detection using fast terahertz quantum well photodetectors

Intrinsically-limited timing jitter in molybdenum silicide superconducting nanowire single-photon detectors

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