100 citations · 176 across the 7 of their papers we have counts for
7 papers
Magnetic-field enhancement of performance of superconducting nanowire single-photon detector
Ilya Charaev, Alexei Semenov, Konstantin Ilin +1
We present SNSPDs from NbN nanowires shaped after square-spiral that allows an increase not only in critical currents but also an extension of spectral detection efficiencies by ju…
Proximity effect model of ultra-narrow NbN strips
I. Charaev, T. Silbernagel, B. Bachowsky +7
We show that narrow superconducting strips in superconducting (S) and normal (N) states are universally described by the model presenting them as lateral NSN proximity systems in w…
Enhancement of superconductivity in NbN nanowires by negative electron-beam lithography with positive resist
I. Charaev, T. Silbernagel, B. Bachowsky +7
We performed comparative experimental investigation of superconducting NbN nanowires which were prepared by means of positive-and negative electron-beam lithography with the same p…
Asymmetry in the effect of magnetic field on photon detection and dark counts in bended nanostrips
A. Semenov, I. Charaev, R. Lusche +6
Current crowding in the bends of superconducting nano-structures not only restricts measurable critical current in such structures but also redistributes local probabilities for da…
Dark counts initiated by macroscopic quantum tunneling in NbN superconducting photon detectors
A. Murphy, A. Semenov, A. Korneev +3
We perform measurements of the switching current distributions of three w = 120 nm wide, 4 nm thick NbN superconducting strips which are used for single-photon detectors. These str…
Tantalum nitride superconducting single-photon detectors with low cut-off energy
Andreas Engel, Adrian Aeschbacher, Kevin Inderbitzin +6
Materials with a small superconducting energy gap are expected to favor a high detection efficiency of low-energy photons in superconducting nanowire single-photon detectors. We de…
Symbiotic Optimization of the Nanolithography and RF-Plasma Etching for Fabricating High-Quality Light-Sensitive Superconductors on the 50 nm Scale
H. Bartolf, K. Inderbitzin, L. B. Gómez +6
We present results of a fabrication-process development for the lithographic pattern transfer into the sub-100nm range by combining electron-beam lithography and reactive dry etchi…