Sensitivity of a superconducting nanowire detector for single ions at low energy

Autor(en)

Michele Sclafani, Markus Marksteiner, Fraser Keir, Alexander Divochiy, Alexander Korneev, Alexander Semenov, Gregory Gol'tsman, Markus Arndt

Abstrakt

We report on the characterization of a superconducting nanowire detector for ions at low kinetic energies. We measure the absolute single-particle detection efficiency eta and trace its increase with energy up to eta = 100%. We discuss the influence of noble gas adsorbates on the cryogenic surface and analyze their relevance for the detection of slow massive particles. We apply a recent model for the hot-spot formation to the incidence of atomic ions at energies between 0.2 and 1 keV. We suggest how the differences observed for photons and atoms or molecules can be related to the surface condition of the detector and we propose that the restoration of proper surface conditions may open a new avenue for SSPD-based optical spectroscopy on molecules and nanoparticles.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Moscow State Pedagogical University (MSPU), Institute of Theoretical and Experimental Physics

Journal

Nanotechnology

Band

23

Anzahl der Seiten

5

ISSN

0957-4484

DOI

https://doi.org/10.1088/0957-4484/23/6/065501

Publikationsdatum

2012

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie, 103026 Quantenoptik, 103008 Experimentalphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/aab1713a-c7c3-48b5-b7d7-d68c808e8254