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Regular version of the site

Article

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

Journal of Physics: Conference Series. 2017. Vol. 917. No. 062037. P. 1-6.
Zolotov Philipp, Divochiy A., Vakhtomin Y., Morozov P., Seleznev V., Smirnov K.

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.