Technology and readout for scaling up superconducting nanowire single-photon detectors
Author: Knehr, Emanuel Marius
Publisher: KIT Scientific Publishing
Published: 2023-03-02
Total Pages: 200
ISBN-13: 3731512564
DOWNLOAD EBOOKThis 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.