%0 Journal Article
%T Comparison of hot spot formation in nbn and mon thin superconducting films after photon absorption
%A Korneeva, Y.
%A Florya, I.
%A Vdovichev, S.
%A Moshkova, M.
%A Simonov, N.
%A Kaurova, N.
%A Korneev, A.
%A Goltsman, G.
%J IEEE Trans. Appl. Supercond.
%D 2017
%V 27
%N 4
%@ 1051-8223
%F Korneeva_etal2017
%O exported from refbase (https://db.rplab.ru/refbase/show.php?record=1325), last updated on Mon, 10 May 2021 21:35:04 -0500
%X In superconducting single-photon detectors (SSPD), the efficiency of local suppression of superconductivity and hotspot formation is controlled by diffusivity and electron-phonon interaction time. Here, we selected a material, 3.6-nm-thick MoNx film, which features diffusivity close to those of NbN traditionally used for SSPD fabrication, but with electron-phonon interaction time an order of magnitude larger. In MoN ∞ detectors, we study the dependence of detection efficiency on bias current, photon energy, and strip width, and compare it with NbN SSPD. We observe nonlinear current-energy dependence in MoNx SSPD and more pronounced plateaus in dependences of detection efficiency on bias current, which we attribute to longer electron-phonon interaction time.
%K MoNx SSPD
%R 10.1109/TASC.2017.2659661
%U http://ieeexplore.ieee.org/document/7835201/
%U https://doi.org/10.1109/TASC.2017.2659661
%P 1-4