Review of Superconducting Nanostrip Photon Detectors using Various Superconductors

Hiroyuki SHIBATA

IEICE TRANSACTIONS on Electronics   Vol.E104-C    No.9    pp.429-434
Publication Date: 2021/09/01
Publicized: 2021/02/24
Online ISSN: 1745-1353
DOI: 10.1587/transele.2020SUI0001
Type of Manuscript: Special Section INVITED PAPER (Special Section on Fabrication of Superconductor Devices; Key Technology in Superconductor Electronics)
single-photon detector,  SNSPD,  SSPD,  superconductor,  

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One of the highest performing single-photon detectors in the visible and near-infrared regions is the superconducting nanostrip photon detector (SNSPD or SSPD), which usually uses NbN or NbTiN as the superconductor. Using other superconductors may significantly improve, for example, the operating temperature and count rate characteristics. This paper briefly reviews the current state of the potential, characteristics, thin film growth, and nanofabrication process of SNSPD using various superconductors.