Kilopixel array of superconducting nanowire single-photon detectors

Wollman, Emma E.; Verma, Varun B.; Lita, Adriana E.; Farr, William H.; Shaw, Matthew D.; Mirin, Richard P.; Nam, Sae Woo

doi:10.1364/oe.27.035279

Cited by 156 publications

(127 citation statements)

References 26 publications

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“…The readout in case of an SNSPD array is another key technology for array application because the detectors are operated at considerably low temperatures. Some inspiring results and studies have been recently observed [98,198]. For example, the first kilopixel SNSPDs with row-column multiplexing architecture were demonstrated in 2019 [98].…”

Section: Discussionmentioning

confidence: 99%

“…Some inspiring results and studies have been recently observed [98,198]. For example, the first kilopixel SNSPDs with row-column multiplexing architecture were demonstrated in 2019 [98]. However, their performance, such as efficiency and uniformity, should be further improved.…”

Section: Discussionmentioning

confidence: 99%

“…To increase CR, L k can be reduced by dividing a single nanowire into multiple nanowires. A few different structures, such as arrays [98], interleaved nanowires [99], and parallel nanowires [100,101], exist. Figure 7 shows a detector with 16 interleaved nanowires that attained a CR of 1.5 GHz with an SDE of ∼12% at a photon flux of 1.26 × 10 10 photons/s.…”

Section: Counting Ratementioning

confidence: 99%

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Superconducting nanowire single-photon detectors for quantum information

You

2020

Nanophotonics

174

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AbstractThe superconducting nanowire single-photon detector (SNSPD) is a quantum-limit superconducting optical detector based on the Cooper-pair breaking effect by a single photon, which exhibits a higher detection efficiency, lower dark count rate, higher counting rate, and lower timing jitter when compared with those exhibited by its counterparts. SNSPDs have been extensively applied in quantum information processing, including quantum key distribution and optical quantum computation. In this review, we present the requirements of single-photon detectors from quantum information, as well as the principle, key metrics, latest performance issues, and other issues associated with SNSPD. The representative applications of SNSPDs with respect to quantum information will also be covered.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Counting Ratementioning

confidence: 99%

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Superconducting nanowire single-photon detectors for quantum information

You

2020

Nanophotonics

174

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“…S UPERCONDUCTING devices are revolutionizing a wide range of research and technological fields including quantum computing [1]- [4], nanowire single-photon detectors [5], X-ray microcalorimeters [6], submillimeter bolometers [7], and Microwave Kinetic Inductance Detectors (MKIDs) [8]- [11]. These applications require increasingly large superconducting arrays, which present the common technical challenge of transporting microwave signals from the cold device stage to room temperature without losing or corrupting the signal or conducting excess heat to the cold stage.…”

Section: Introductionmentioning

confidence: 99%

Flexible Coaxial Ribbon Cable for High-Density Superconducting Microwave Device Arrays

Mazin

Walter

Daal

et al. 2021

IEEE Trans. Appl. Supercond.

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Superconducting electronics often require highdensity microwave interconnects capable of transporting signals between temperature stages with minimal loss, cross talk, and heat conduction. We report the design and fabrication of superconducting 53 wt% Nb-47 wt% Ti (Nb47Ti) FLexible coAXial ribbon cables (FLAX). The ten traces each consist of a I0.076 mm NbTi inner conductor insulated with PFA (I0.28 mm) and sheathed in a shared 0.025 mm thick Nb47Ti outer conductor. The cable is terminated with G3PO coaxial push-on connectors via stainless steel capillary tubing (I1.6 mm, 0.13 mm thick) soldered to a coplanar wave guide transition board. The 30 cm long cable has 1 dB of loss at 8 GHz with-60 dB nearest-neighbor forward cross talk. The loss is 0.5 dB more than commercially available superconducting coax likely due to impedance mismatches caused by manufacturing imperfections in the cable. The reported cross talk is 30 dB lower than previously developed laminated NbTi-on-Kapton microstrip cables. We estimate the heat load from 1 K to 90 mK to be 20 nW per trace, approximately half the computed load from the smallest commercially available superconducting coax from CryoCoax.

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“…Superconducting nanowire single-photon detector device development remains a highly fruitful research area, with academic research groups, national laboratories and start-up companies all engaged. Important avenues of current development include the scale-up from single-pixel devices to large scale arrays [10], integration with complex waveguide circuits [11] and extension of photon counting performance into the ultraviolet and mid-infrared spectral regions.…”

mentioning

confidence: 99%