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Single photon detection in micron scale NbN and α-MoSi superconducting strips

Journal Article (2018)
Author(s)

Yuliya Korneeva (Moscow State Pedagogical University)

Denis Vodolazov (Russian Academy of Sciences)

Irina Florya (Moscow State Pedagogical University)

Nadegda Manova (Moscow State Pedagogical University)

Eugenii Smirnov (Moscow State Pedagogical University)

Alexander Korneev (Moscow State Pedagogical University, National Research University Higher School of Economics (HSE University))

Michail Mikhailov (National Academy of Sciences of Ukraine )

Gregory Goltsman (National Research University Higher School of Economics (HSE University), Moscow State Pedagogical University)

Teunis M. Klapwijk (Kavli institute of nanoscience Delft, TU Delft - QN/Klapwijk Lab, Moscow State Pedagogical University)

Research Group
QN/Klapwijk Lab
DOI related publication
https://doi.org/10.1051/epjconf/201819004010 Final published version
More Info
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Publication Year
2018
Language
English
Research Group
QN/Klapwijk Lab
Journal title
EPJ Web of Conferences
Volume number
190
Article number
04010
Downloads counter
414
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Abstract

We experimentally demonstrate the single photon detection in straight micrometer-wide NbN and α-MoSi bridges. Width of the bridges is 2 μm, while the wavelength of the photon changes from 408 to 1550 nm and critical current exceeds 50% of the depairing current. Obtained results offer the alternative route for design of detectors without resonator and meander structure and indirectly confirm vortex assisted mechanism of single photon detection.