ICNN Poster Session

[ICNNp-05] Enhancing NbTiN superconducting nanowire single-photon detectors using helium ion irradiation

*Fabian Wietschorke¹, Stefan Strohauer², Christian Schmid¹, Lucio Zugliani¹, Rasmus Flaschmann¹, Stefanie Grotowski², Manuel Müller³, Björn Jonas¹, Matthias Althammer³, Rudolf Gross³, Jonathan Finley², Kai Müller¹ (1. Walter Schottky Institute and School of Computation, Information and Technology, Technical University of Munich, 85748 Garching, Germany , 2. Walter Schottky Institute and School of Natural Sciences, Technical University of Munich, 85748 Garching, Germany, 3. Walther-Meißner-Institut, 85748 Garching, Germany)

We present NbTiN superconducting nanowire single-photon detectors showing a strongly increased system detection efficiency after Helium ion irradiation as well as a detailed study of the defect creation in NbTiN due to the ion bombardment.