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Demonstration of a Thermally Coupled Row-Column SNSPD Imaging Array

Allmaras, Jason P. and Wollman, Emma E. and Beyer, Andrew D. and Briggs, Ryan M. and Korzh, Boris A. and Bumble, Bruce and Shawkey, Matthew D. (2020) Demonstration of a Thermally Coupled Row-Column SNSPD Imaging Array. Nano Letters, 20 (3). pp. 2163-2168. ISSN 1530-6984. doi:10.1021/acs.nanolett.0c00246.

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While single-pixel superconducting nanowire single photon detectors (SNSPDs) have demonstrated remarkable efficiency and timing performance from the UV to near-IR, scaling these devices to large imaging arrays remains challenging. Here, we propose a new SNSPD multiplexing system using thermal coupling and detection correlations between two photosensitive layers of an array. Using this architecture with the channels of one layer oriented in rows and the second layer in columns, we demonstrate imaging capability in 16-pixel arrays with accurate spot tracking at the few-photon level. We also explore the performance trade-offs of orienting the top layer nanowires parallel and perpendicular to the bottom layer. The thermally coupled row-column scheme is readily able to scale to the kilopixel size with existing readout systems and, when combined with other multiplexing architectures, has the potential to enable megapixel scale SNSPD imaging arrays.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Allmaras, Jason P.0000-0001-9621-289X
Wollman, Emma E.0000-0002-5474-3745
Korzh, Boris A.0000-0002-8262-9720
Shawkey, Matthew D.0000-0002-5131-8209
Additional Information:© 2020 American Chemical Society. Received: January 18, 2020; Revised: February 12, 2020; Published: February 24, 2020. The authors thank V. Verma, A. McCaughan, and S. W. Nam for helpful discussions. This research was performed at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This work was supported by a NASA Space Technology Research Fellowship. Support was provided in part by the DARPA Defense Sciences Office, through the DETECT program.
Funding AgencyGrant Number
NASA Space Technology Research FellowshipUNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Subject Keywords:single-photon detector, nanowires, SNSPD, superconducting devices, detector arrays
Issue or Number:3
Record Number:CaltechAUTHORS:20200302-143325405
Persistent URL:
Official Citation:Demonstration of a Thermally Coupled Row-Column SNSPD Imaging Array. Jason P. Allmaras, Emma E. Wollman, Andrew D. Beyer, Ryan M. Briggs, Boris A. Korzh, Bruce Bumble, and Matthew D. Shaw. Nano Letters 2020 20 (3), 2163-2168; DOI: 10.1021/acs.nanolett.0c00246
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101661
Deposited By: Tony Diaz
Deposited On:02 Mar 2020 22:40
Last Modified:16 Nov 2021 18:04

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