@Article{Wang_etal2009,
author="Wang, Zhen
and Miki, S.
and Fujiwara, M.",
title="Superconducting nanowire single-photon detectors for quantum information and communications",
journal="IEEE J. Sel. Topics Quantum Electron.",
year="2009",
volume="15",
number="6",
pages="1741--1747",
optkeywords="SSPD",
abstract="Superconducting nanowire single-photon detectors (SNSPDs or SSPD) are highly promising devices in the growing field of quantum information and communications technology. We have developed a practical SSPD system with our superconducting thin films and devices fabrication, optical coupling packaging, and cryogenic technology. The SSPD system consists of six-channel SSPD devices and a compact Gifford-McMahon (GM) cryocooler, and can operate continuously on 100 V ac power without the need for any cryogens. The SSPD devices were fabricated from high-quality niobium nitride (NbN) ultrathin films that were epitaxially grown on single-crystal MgO substrates. The packaged SSPD devices were temperature stabilized to 2.96 K {\~A}{\quotesinglbase}{\textpm} 10 mK. The system detection efficiency for an SSPD device with an area of 20 {\~A}{\textflorin}{\^a}{\texteuro}{\textquoteright}{\textquoteright} 20 {\~A}{\quotesinglbase}{\^A}{\textquestiondown}m2 was found to be 2.6{\%} and 4.5{\%} at wavelengths of 1550 and 1310 nm, respectively, at a dark count rate of 100 Hz, and a jitter of 100 ps full-width at half maximum. We also performed ultrafast BB84 quantum key distribution (QKD) field testing and entanglement-based QKD experiments using these SSPD devices.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=676), last updated on Sun, 22 May 2016 17:00:36 -0500"
}