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

Journal article (2018)

Authors

Yu P. 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
A. A. Korneev National Research University Higher School of Economics, Moscow State Pedagogical University
Michail Mikhailov National Academy of Sciences of Ukraine
Gregory N. Goltsman Moscow State Pedagogical University, National Research University Higher School of Economics
Teun M. Klapwijk Kavli institute of nanoscience Delft, QN/Klapwijk Lab, Moscow State Pedagogical University
Research Group
QN/Klapwijk Lab
Copyright: © 2018 Yuliya Korneeva, Denis Vodolazov, Irina Florya, Nadegda Manova, Eugenii Smirnov, Alexander Korneev, Michail Mikhailov, Gregory Goltsman, T.M. Klapwijk
DOI: https://doi.org/10.1051/epjconf/201819004010
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Published Date

2018

Language

English

Research Group

QN/Klapwijk Lab

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.