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30 April 2024 Development and performance evaluation of high-temperature superconducting detectors in the 1550nm band
Weiying Hu, Jianwen Huang, Shijie Deng, Fei Yuan, Qiang Xu, Xiumin Xie, Shuai Huang, Haihua Huang, Jian Chen, Haizhi Song
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Proceedings Volume 13154, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Detector Technologies; 131540B (2024) https://doi.org/10.1117/12.3016848
Event: Sixth Conference on Frontiers in Optical Imaging Technology and Applications (FOI2023), 2023, Nanjing, JS, China
Abstract
The nanopore-structure YBa2Cu3O7 (YBCO) high-temperature superconducting detectors are novel with their possible phase transition mechanism from insulating to metallic states. In this paper, an array of YBCO nanopore detectors were fabricated and evaluated. Very thin YBCO films were deposited on strontium titanate substrates, and 16×1 high-temperature superconducting detectors were prepared by photolithography, etching and evaporation processes. Connected with the specially designed and developed readout circuit, the detectors were tested in terms of resistance-temperature (R-T) and voltage-current (I-V) characteristics. The R-T curve confirms the insulating phase of the nanopore superconducting YBCO film at low temperature. With increasing the incident intensity of 1550nm light, the resistance of the detector reduces significantly, implying the photoinduced metallic-conduction phase. The photoresponse is detectible under 1550 nm irradiation down to ~10nW, suggesting the possibility of highly sensitive photodetection. Our new devices may have application prospects in many fields such as quantum communication and aerospace detection.
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Weiying Hu, Jianwen Huang, Shijie Deng, Fei Yuan, Qiang Xu, Xiumin Xie, Shuai Huang, Haihua Huang, Jian Chen, and Haizhi Song "Development and performance evaluation of high-temperature superconducting detectors in the 1550nm band", Proc. SPIE 13154, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Detector Technologies, 131540B (30 April 2024); https://doi.org/10.1117/12.3016848
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KEYWORDS
Superconductors
Quantum detection
Resistance
Single photon detectors
Superconducting detectors
Sensors
Quantum processes
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