Modelling the Performance of Single-Photon Counting Kinetic Inductance Detectors |
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Authors: | Josie Dzifa Akua Parrianen Andreas Papageorgiou Simon Doyle Enzo Pascale |
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Affiliation: | 1.School of Physics and Astronomy,Cardiff University,Cardiff,UK;2.Dipartimento di Fisica,Sapienza Universita di Roma,Rome,Italy |
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Abstract: | We present the first published results of near-infrared single-photon detection in aluminium lumped element kinetic inductance detectors (LEKIDs). Using aluminium as a well-understood material that follows conventional superconductor theory, we discuss and validate a model that describes the energy-resolving performance of a LEKID to single-photon absorption events. We also discuss data analysis techniques used to extract single-photon detections from noisy data. We measure an energy resolution of 662 meV for a 1550 nm photon source which is in close agreement to our model predictions for this non-optimised device limited by generation–recombination noise. |
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