A scalable multi-photon coincidence detector based on superconducting nanowires
Name
1711.10546.pdf
Description
Submitted version
Size
5.57 MB
Format
Adobe PDF
Checksum (MD5)
c4ac09d56de3b16344a9a320c607c2f4
Author(s)
Zhu, Di
Zhao, Qing-Yuan
Choi, Hyeongrak
Lu, Tsung-Ju
Dane, Andrew E
Englund, Dirk
Berggren, Karl K
Date Issued
2018
Journal
Nature Nanotechnology
Publisher
Springer Nature
Version
Original manuscript
Abstract
© 2018 The Author(s). Coincidence detection of single photons is crucial in numerous quantum technologies and usually requires multiple time-resolved single-photon detectors. However, the electronic readout becomes a major challenge when the measurement basis scales to large numbers of spatial modes. Here, we address this problem by introducing a two-terminal coincidence detector that enables scalable readout of an array of detector segments based on superconducting nanowire microstrip transmission line. Exploiting timing logic, we demonstrate a sixteen-element detector that resolves all 136 possible single-photon and two-photon coincidence events. We further explore the pulse shapes of the detector output and resolve up to four-photon events in a four-element device, giving the detector photon-number-resolving capability. This new detector architecture and operating scheme will be particularly useful for multi-photon coincidence detection in large-scale photonic integrated circuits.
MIT Department
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/10.1038/S41565-018-0160-9
