Waveguide-integrated single- and multi-photon detection at telecom wavelengths using superconducting nanowires

被引：35

作者：

Ferrari, Simone ^{[1
]}

Kahl, Oliver ^{[1
]}

Kovalyuk, Vadim ^{[1
,2
]}

Goltsman, Gregory N. ^{[2
,3
]}

Korneev, Alexander ^{[2
,4
]}

Pernice, Wolfram H. P. ^{[1
,5
]}

机构：

[1] Karlsruhe Inst Technol, Inst Nanotechnol, D-76132 Karlsruhe, Germany

[2] Moscow State Pedag Univ, Dept Phys, Moscow 119992, Russia

[3] Natl Res Univ Higher Sch Econ, Moscow 101000, Russia

[4] State Univ, Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Russia

[5] Univ Munster, Dept Phys, D-48149 Munster, Germany

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 15期

关键词：

PHOTON AVALANCHE-DIODES;

D O I：

10.1063/1.4917166

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate single-and multi-photon detection regimes of superconducting nanowire detectors embedded in silicon nitride nanophotonic circuits. At near-infrared wavelengths, simultaneous detection of up to three photons is observed for 120 nm wide nanowires biased far from the critical current, while narrow nanowires below 100 nm provide efficient single photon detection. A theoretical model is proposed to determine the different detection regimes and to calculate the corresponding internal quantum efficiency. The predicted saturation of the internal quantum efficiency in the single photon regime agrees well with plateau behavior observed at high bias currents. (c) 2015 AIP Publishing LLC.

引用

页数：5

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