AI Article Synopsis
- Research on superconducting nanowire single photon detectors (SNSPDs) has advanced significantly in the last 20 years, thanks to improvements in key performance metrics like dark count rate and response time.
- Despite challenges in optimizing multiple parameters simultaneously, the discovery of effective detection efficiency at low temperatures has spurred interest in high transition temperature cuprate-based superconductors.
- The review explores various models of photon detection and examines the progress made using different superconducting materials, highlighting ongoing research on oxide-based superconductors and offering suggestions for performance enhancements in SNSPDs.
Article Abstract
Research activities in the field of superconducting nanowire single photon detectors (SNSPDs) have exhibited major progress over the last two decades. The low dark count rate, low jitter time, low recovery time, and ultrafast response time in an extended wavelength range, along with several improvements in the material parameters, cryogenic environment, and associated electronics make SNSPDs a superior choice over other photo-detectors. The struggle in simultaneously optimizing these parameters made the pace of SNSPD research steady, until the report of unit system detection efficiency at low temperatures for WSi SNSPD. Due to the difficulty in maintaining the low temperature for a long time, researchers are currently focusing on using high transition temperatures cuprate-based superconductors. These have the added advantages of making a portable SNSPD combined with faster response dynamics required for commercial SNSPD applications. In this review, we have discussed different models for single photon detection, followed by research activities carried out employing different superconducting materials over the last 20 years. The ongoing research toward utilizing oxide-based superconductors as photon detection devices along with a few suggestions for improving the device performance is discussed. This review will fill the gap required for a detailed study of different classes of superconductors for SNSPD applications.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11420460 | PMC |
| http://dx.doi.org/10.1016/j.isci.2024.110779 | DOI Listing |
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