68 citations · 319 across the 15 of their papers we have counts for
15 papers
Jitter in photon-number-resolved detection by superconducting nanowires
Mariia Sidorova, Timon Schapeler, Alexej D. Semenov +5
By analyzing the physics of multi-photon absorption in superconducting nanowire single-photon detectors (SNSPDs), we identify physical components of jitter. From this, we formulate…
Phonon heat capacity and disorder: new opportunities for performance enhancement of superconducting devices
M. Sidorova, A. D. Semenov, I. Charaev +4
We experimentally study for the first time the self-heating normal domain in magnetic field using nanowires made of granular NbTiN films with sub-10~nm thicknesses. Specifically, w…
Photon-number dependent afterpulsing in superconducting nanostrip single-photon detectors
Sebastian M. F. Raupach, Mariia Sidorova, Alexej D. Semenov
Superconducting nanostrip single-photon detectors (SNSPD) are wide-spread tools in photonic quantum technologies. Here, we study afterpulsing in commercial SNSPD made of amorphous…
Phonon heat capacity and self-heating normal domains in NbTiN nanostrips
M. Sidorova, A. D. Semenov, H. -W. Huebers +2
Self-heating normal domains in thin superconducting NbTiN nanostrips were characterized via steady-state hysteretic current-voltage characteristics measured at different substrate…
Magnetoconductance and photoresponse properties of disordered NbTiN films
M. Sidorova, A. Semenov, H. -W. Huebers +4
We report on the study of phonon properties and electron-phonon coupling in thin NbTiN films, which are intensively exploited in superconducting devices. Studied NbTiN films with t…
Local thermal fluctuations in current-carrying superconducting nanowires
Alexej D. Semenov, Mariia Sidorova, Mikhail A. Skvortsov +3
We analyze the effect of different types of fluctuations in internal electron energy on the rates of dark and photon counts in straight current-carrying superconducting nanowires.…
Electron energy relaxation in disordered superconducting NbN films
Mariia Sidorova, Alexej Semenov, Heinz-Wilhelm Hübers +8
We report on the inelastic-scattering rate of electrons on phonons and relaxation of electron energy studied by means of magnetoconductance, and photoresponse, respectively, in a s…
Geometrical jitter and bolometric regime in photon detection by straight superconducting nanowire
Artem Kuzmin, Steffen Doerner, Stefan Wuensch +4
We present a direct observation of the geometrical jitter in single photon detection by a straight superconducting nanowire. Differential measurement technique was applied to the 1…
Thermal properties of NbN single-photon detectors
E. M. Baeva, M. V. Sidorova, A. A. Korneev +9
We investigate thermal properties of a NbN single-photon detector capable of unit internal detection efficiency. Using an independent calibration of the coupling losses we determin…
Timing jitter in photon detection by straight superconducting nanowires: Effect of magnetic field and photon flux
Mariia Sidorova, Alexej Semenov, Heinz-Wilhelm Hubers +4
We studied the effect of the external magnetic field and photon flux on timing jitter in photon detection by straight superconducting NbN nanowires. At two wavelengths 800 and 1560…
Superconducting fluctuations and characteristic time scales in amorphous WSi
Xiaofu Zhang, Adriana E. Lita, Mariia Sidorova +5
We study magnitudes and temperature dependences of the electron-electron and electron-phonon interaction times which play the dominant role in the formation and relaxation of photo…
Physical mechanisms of timing jitter in photon detection by current carrying superconducting nanowires
Mariia Sidorova, Alexej Semenov, Heinz-Wilhelm Hubers +4
We studied timing jitter in the appearance of photon counts in meandering nanowires with different fractional amount of bends. Timing jitter, which is the probability density of th…
Characteristics of superconducting tungsten silicide WxSi1-x for single photon detection
X. Zhang, A. Engel, Q. Wang +7
Superconducting properties of three series of amorphous WxSi1-x films with different thickness and stoichiometry were investigated by dc transport measurements in a magnetic field…
Non-bolometric bottleneck in electron-phonon relaxation in ultra-thin WSi film
M. Sidorova, A. Kozorezov, A. Semenov +6
We developed the model of the internal phonon bottleneck to describe the energy exchange between the acoustically soft ultrathin metal film and acoustically rigid substrate. Discri…
Rise times of voltage pulses in NbN superconducting single-photon detectors
K. V. Smirnov, A. V. Divochiy, Yu. B. Vakhtomin +6
We have found experimentally that the rise times of voltage pulses in NbN superconducting single photon detectors increase nonlinearly with increasing detector length. We fabricate…