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arXiv · 2406.09436

Investigation of reflection-based measurements of microwave kinetic inductance detectors in the optical bands

Jie Hu·Faouzi Boussaha·Paul Nicaise·Christine Chaumont·Maria Appavou·Viet Dung Pham·Michel Piat
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Abstract

In this paper, we investigate the single photon response from the reflection of the Microwave Kinetic Inductance Detector (MKID) array. Reflection measurements are carried out using two configurations: one is measured simultaneously with the transmission, and the other is obtained with a single-ended MKID array terminated with an open load. Compared with the transmission, reflection measurements significantly reduce the readout noise of the single-ended MKID array. This is also reflected in the improvement of the median energy resolving power by around 20%-30% under pulsed photon illumination at $\lambda = 405$~nm, mainly due to an increase in the size of the resonance circle on the IQ plane. This method has the potential to be used to read out large MKID arrays.

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Jie Hu, Faouzi Boussaha, Paul Nicaise, Christine Chaumont, Maria Appavou, Viet Dung Pham, Michel Piat. 2024-06-11. Investigation of reflection-based measurements of microwave kinetic inductance detectors in the optical bands. https://doi.org/10.1063/5.0207817

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