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24 November 2021 Characterization of the quasiparticle lifetime of microwave kinetic inductance detector
Zhi Li, Weitao Lv, Qing Shi, Zheng Wang, Jing Li, Shengcai Shi
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Proceedings Volume 12069, AOPC 2021: Novel Technologies and Instruments for Astronomical Multi-Band Observations; 1206913 (2021) https://doi.org/10.1117/12.2606794
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China
Abstract
We design and fabricate a 350GHz 8×8 Al Microwave Kinetic Inductance Detector (MKIDs) array for the demonstration of its characteristics, mainly focus on the quasiparticle lifetime of the resonators. The quasiparticle lifetime data is collected by measuring a resonator’s phase response to a LED pulse at resonant frequency in a dilution refrigerator cooled to mK stage. We also measure and discuss the influence of various parameters on the change of quasiparticle lifetime, including different LED voltage supply, bath temperature of the MKIDs, and superconducting film thickness.
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Zhi Li, Weitao Lv, Qing Shi, Zheng Wang, Jing Li, and Shengcai Shi "Characterization of the quasiparticle lifetime of microwave kinetic inductance detector", Proc. SPIE 12069, AOPC 2021: Novel Technologies and Instruments for Astronomical Multi-Band Observations, 1206913 (24 November 2021); https://doi.org/10.1117/12.2606794
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KEYWORDS
Quasiparticles
Aluminum
Resonators
Inductance
Superconductors
Microwave radiation
Detector arrays
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