Development of high-effective superconducting single-photon detectors aimed for mid-IR spectrum range

P I Zolotov, A V Divochiy, Yu B Vakhtomin, P V Morozov, V A Seleznev, K V Smirnov
2017 Journal of Physics, Conference Series  
To cite this article: P I Zolotov et al 2017 J. Phys.: Conf. Ser. 917 062037 View the article online for updates and enhancements. Related content Ultrathin NbN film superconducting singlephoton detector array K Smirnov, A Korneev, O Minaeva et al. -Waveguide integrated superconducting single-photon detector for on-chip quantum and spectral photonic application V Kovalyuk, S Ferrari, O Kahl et al. -Scheme for entanglement concentration ofunknown W class states vialinear optics Abstract. We
more » ... s Abstract. We report on development of superconducting single-photon detectors (SSPD) with high intrinsic quantum efficiency in the wavelength range 1.31 -3.3 µm. By optimization of the NbN film thickness and its compound, we managed to improve detection efficiency of the detectors in the range up to 3.3 µm. Optimized devices showed intrinsic quantum efficiencies as high as 10% at mid-IR range.
doi:10.1088/1742-6596/917/6/062037 fatcat:qttmextyqfew7ez3p6uubnjyou