82 citations · 291 across the 18 of their papers we have counts for
18 papers
Superconducting Nanowire Single-Photon Detector (SNSPD) with 3D-Printed Free-Form Microlenses
Yilin Xu, Artem Kuzmin, Emanuel Knehr +6
We present an approach to increase the effective light-receiving area of superconducting nanowire single-photon detectors (SNSPD) by means of free-form microlenses that are printed…
Hybrid Electro-Optic Modulator Combining Silicon Photonic Slot Waveguides with High-k Radio-Frequency Slotlines
Sandeep Ummethala, Juned N. Kemal, Ahmed S. Alam +10
Electro-optic (EO) modulators rely on interaction of optical and electrical signals with second-order nonlinear media. For the optical signal, this interaction can be strongly enha…
Synchronous single-photon detection with self-resetting GHz-gated superconducting NbN nanowires
Emanuel Knehr, Artem Kuzmin, Steffen Doerner +4
We demonstrate a GHz-gated operation of resonator-coupled superconducting nanowire single-photon detectors suitable for synchronous applications. In comparison with conventional dc…
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.…
Nanowire single-photon detectors made of atomic layer-deposited niobium nitride
Emanuel Knehr, Artem Kuzmin, Mario Ziegler +5
We demonstrate and characterize first superconducting nanowire single-photon detectors (SNSPDs) made from atomic layer-deposited (ALD) NbN layers. To assess the suitability of thes…
Comparison of SNSPDs biased with microwave and direct currents
Steffen Doerner, Artem Kuzmin, Stefan Wuensch +1
This paper presents a detailed investigation of superconducting nanowire single-photon detectors (SNSPDs) biased with microwave and direct currents. We developed a hybrid detector,…
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…
Terahertz Transition-Edge Sensor with Kinetic-Inductance Amplifier at 4.2 K
Artem Kuzmin, Steffen Doerner, Stefan Singer +4
Different terrestrial terahertz applications would benefit from large-format arrays, operating in compact and inexpensive cryocoolers at liquid helium temperature with sensitivity,…
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 noise bolometer with microwave bias and readout for array applications
A. A. Kuzmin, A. D. Semenov, S. V. Shitov +4
We present a superconducting noise bolometer for terahertz radiation, which is suitable for large-format arrays. It is based on an antenna-coupled superconducting micro-bridge embe…
Compact microwave kinetic inductance nanowire galvanometer for cryogenic detectors at 4.2 K
S. Doerner, A. Kuzmin, K. Graf +3
We present a compact current sensor based on a superconducting microwave lumped-element resonator with a nanowire kinetic inductor, operating at 4.2 K. The sensor is suitable for m…
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…
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…
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…
Frequency-Multiplexed bias and readout of a 16-pixel Superconducting Nanowire Single-Photon Detector Array
Steffen Doerner, Artem Kuzmin, Stefan Wuensch +4
We demonstrate a 16-pixel array of radio-frequency superconducting nanowire single-photon detectors with an integrated and scalable frequency-division multiplexing architecture, re…
Operation of Multi-Pixel Radio-Frequency Superconducting Nanowire Single-Photon Detector Arrays
Steffen Doerner, Artem Kuzmin, Stefan Wuensch +2
The concept of the radio-frequency superconducting nanowire single-photon detector (RF-SNSPD) allows frequency-division multiplexing (FDM) of the bias and readout lines of several…
Wide-Range Bolometer with RF Readout TES
S. V. Shitov, N. N. Abramov, A. A. Kuzmin +7
To improve both scalability and noise-filtering capability of a Transition-Edge Sensor (TES), a new concept of a thin-film detector is suggested, which is based on embedding a micr…
Superconducting hot-electron nanobolometer with microwave bias and readout
A. A. Kuzmin, M. Merker, S. V. Shitov +7
We propose a new detection technique based on radio-frequency (RF) bias and readout of an antenna-coupled superconducting nanobolometer. This approach is suitable for Frequency-Div…