TITLE

Shaping the response pulse of superconducting nanowire single photon detection with a snubber

AUTHOR(S)
You, L. X.; Shen, X. F.
PUB. DATE
October 2009
SOURCE
Applied Physics Letters;10/12/2009, Vol. 95 Issue 15, p152514
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Unavoidable kinetic inductance of the superconducting nanowire single photon detector results in the signal pulse with a slow falling edge and a large pulse width. It has been a limit for improving the repetition rate for single photon detection. With a snubber made of a coaxial cable terminated with a resistive pot, the original signal pulse can be shaped. A sharp falling edge can be produced with suitable snubber parameters and the final output pulse has a symmetric wave. The pulse width (full width at half maximum) is reduced from 5 to 1 ns.
ACCESSION #
44665165

 

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