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Superconducting Qubits Photonic Quantum Computing Spin Qubits Silicon Quantum Computing

Mid-infrared single photon detector with superconductor Mo₈₀Si₂₀ nanowire

arXiv

Authors: Qi Chen, Rui Ge, Labao Zhang, Feiyan Li, Biao Zhang, Yue Dai, Yue Fei, Xiaohan Wang, Xiaoqing Jia, Qingyuan Zhao, Xuecou Tu, Lin Kang, Jian Chen, Peiheng Wu

Year

2020

Paper ID

19316

Status

Preprint

Abstract Read

~2 min

Abstract Words

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Abstract

A mid-infrared single photon detector (MIR-SNSPD) was reported based on 30 nm-wide superconductor molybdenum silicide nanowires in this work. Saturated quantum efficiencies (QEs) were achieved at the wavelength ranging from 1.55 to 5.07 micrometer in experiments. At the same time, the intrinsic dark count rate (DCR) was below 100 cps. Thus, this device produced a noise equivalent power (NEP) of 4.5 * 10-19 W/sqrt(Hz). The results provide the foundation of developing 10 micrometer-SNSPD for the applications of infrared astronomy observation.

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A mid-infrared single photon detector (MIR-SNSPD) was reported based on 30 nm-wide superconductor molybdenum silicide nanowires in this work.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2011.06699 [2] arXiv https://arxiv.org/abs/2011.06699 [3] Publisher https://arxiv.org/abs/2011.06699

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