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Technology and readout for scaling up superconducting nanowire single-photon detectors

This work presents three advances to scale SNSPDs from few-pixel devices to large detector arrays: atomic layer deposition for the fabrication of uniform superconducting niobium nitride films of few-nanometer thickness, a frequency-multiplexing scheme to operate multiple detectors with a reduced num...

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Hovedforfatter: Knehr, Emanuel Marius
Format: Online
Sprog:engelsk
Udgivet: KIT Scientific Publishing 2023
Fag:
SNSPD; Einzelphotonendetektor; Supraleitung; Atomlagenabscheidung; single-photon detector; superconductivity; thin-film technology; frequency-division multiplexing; optical integration
thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TH Energy technology and engineering::THR Electrical engineering
Online adgang:https://library.oapen.org/handle/20.500.12657/61613
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Summary:This work presents three advances to scale SNSPDs from few-pixel devices to large detector arrays: atomic layer deposition for the fabrication of uniform superconducting niobium nitride films of few-nanometer thickness, a frequency-multiplexing scheme to operate multiple detectors with a reduced number of lines, and the integration of SNSPDs with free-form polymer structures to achieve efficient optical coupling onto the active area of the detectors.

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