Electrothermal feedback in superconducting nanowire single-photon detectors
Name
Kerman-2009-Electrothermal feedb.pdf
Size
286.3 KB
Format
Adobe PDF
Checksum (MD5)
1b6430c20f020d3672471add8f812765
Author(s)
Kerman, Andrew J.
Yang, Joel K. W.
Molnar, Richard J.
Dauler, Eric A.
Berggren, Karl K.
Date Issued
March 2009
Journal
Physical Review B
Publisher
American Physical Society
Citation
Kerman, Andrew J. et al. “Electrothermal feedback in superconducting nanowire single-photon detectors.” Physical Review B 79.10 (2009): 100509. © 2009 The American Physical Society.
Version
Final published version
Abstract
We investigate the role of electrothermal feedback in the operation of superconducting nanowire single-photon detectors (SNSPDs). It is found that the desired mode of operation for SNSPDs is only achieved if this feedback is unstable, which happens naturally through the slow electrical response associated with their relatively large kinetic inductance. If this response is sped up in an effort to increase the device count rate, the electrothermal feedback becomes stable and results in an effect known as latching, where the device is locked in a resistive state and can no longer detect photons. We present a set of experiments which elucidate this effect and a simple model which quantitatively explains the results.
MIT Department
Lincoln Laboratory
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.
Persistent DSpace Link
DOI of Published Version
http://dx.doi.org/10.1103/PhysRevB.79.100509
