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

ISBN-13: 9783731512561 / Angielski / Miękka / 202 str.

Emanuel Marius Knehr

Opis

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.