Single-Photon Single-Flux Coupled Detectors
Name
1910.11435.pdf
Description
Submitted version
Size
1.42 MB
Format
Adobe PDF
Checksum (MD5)
58a0b55e27b0540a8395f53b0915ebaa
Author(s)
Onen, Murat
Turchetti, Marco
Butters, Brenden A
Bionta, Mina R
Keathley, Phillip D
Berggren, Karl K
Date Issued
2020
Journal
Nano Letters
Publisher
American Chemical Society (ACS)
Version
Original manuscript
Abstract
Copyright © 2019 American Chemical Society. In this work, we present a novel device that is a combination of a superconducting nanowire single-photon detector and a superconducting multilevel memory. We show that these devices can be used to count the number of detections through single-photon to single-flux conversion. Electrical characterization of the memory properties demonstrates single-flux quantum (SFQ) separated states. Optical measurements using attenuated laser pulses with different mean photon number, pulse energies and repetition rates are shown to differentiate single-photon detection from other possible phenomena, such as multiphoton detection and thermal activation. Finally, different geometries and material stacks to improve device performance, as well as arraying methods, are discussed.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1021/ACS.NANOLETT.9B04440
