摘要
Superconducting nanowire single-photon detectors(SNSPDs)with low energy gaps exhibit superior single-photon sensitivity at infrared wavelengths[1],and state-of-the-art SNSPDs have the potential to meet the stringent demands of mid-IR(MIR)detection[2].However,the nanowire thickness(~λ/1000-λ/600)and width(~λ/166-λ/60)are much smaller than those at MIR wavelengths,which results in weak absorption with a low detection efficiency[3].
基金
National Natural Science Foundation of China(12033002,62275118,62071218,62101240,62227820,12161141009,and 62288101)
Innovation Program for Quantum Science and Technology(2021ZD0303401)
Civil Aerospace Technology Research Project(D040305)
Fundamental Research Funds for the Central Universities,the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)
Postgraduate Research&Practice Innovation Program of Jiangsu Province.
