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Timing jitter of cascade switch superconducting nanowire single photon detectors
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10.1063/1.3237172
/content/aip/journal/apl/95/13/10.1063/1.3237172
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/13/10.1063/1.3237172
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Scanning electron micrograph of the parallel SNSPD part of the chip. (b) Scanning electron micrograph of the SNSPD device layout. (c) Schematic representation of the nanowires (gray boxes) used to simulate the timing jitter of a parallel SNSPD.

Image of FIG. 2.
FIG. 2.

The measured jitter histogram (crosses) at a bias current. The temperature was 5 K. The solid line is the fitted jitter histogram. Inset: jitter histogram for different bias currents. The data (crosses) have been offset for clarity. The bias currents were from top to bottom: 235, 230, 220, 210, and . The temperature was 5 K. Solid lines are the calculated jitter histogram for each bias current.

Image of FIG. 3.
FIG. 3.

(a) Calculated temporal evolution of the superconducting order parameter modulus in each of five parallel nanowires when a photon is absorbed in the first nanowire (lower curve (green) , middle curve (blue) , and upper curve (red) ). The calculation was performed using , , , , and . (b) Same as (a) but the photon is absorbed in the fourth nanowire. (c) Measured (circles) and the calculated (crosses) timing jitter asymmetry vs bias current.

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/content/aip/journal/apl/95/13/10.1063/1.3237172
2009-09-30
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Timing jitter of cascade switch superconducting nanowire single photon detectors
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/13/10.1063/1.3237172
10.1063/1.3237172
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