@article{10902/34457,
year = {2024},
month = {11},
url = {https://hdl.handle.net/10902/34457},
abstract = {This paper presents the detector developments for the Canfrac Axion Detection Experiment (CADEx), aiming at detecting dark matter axions and dark photons within the W-band. A proof of concept of the detection system is based on an array of lumped-element kinetic inductance detectors (LEKIDs). Microstrip technology is used as read-out scheme, and the ground plane acts as backshort for optimizing optical absorption in the W-band. A titanium/aluminum bilayer is used for ensuring detection below 100 GHz. The detector array design includes an inner active section consisting of 36 detectors for direct detection of the axion signal and an additional outer rim of 28 blind pixels for calibration purposes. The nanofabrication process and a preliminary cryogenic characterization are presented, being the results in good agreement with the frequency design. Measured devices exhibit coupling quality factors of the order of 6 × 104, internal quality factors above 105 and an estimated kinetic inductance of 3.3 pH/□.},
organization = {CAB and IMDEA-Nanociencia works are supported by the Ministry of Science and Innovation under grants PID2022-137779OB-C41 and PID2022-137779OB-C42 and by Comunidad de Madrid under grant P2018/NMT-4291 TEC2SPACE-CM. IMDEA-Nanociencia acknowledges financial support from the “Severo Ochoa” Programme for Centers of Excellence in R&D (grant SEV-2016-0686). CAB also acknowledges financial support from CSIC Research Platform PTI-001 and from “Tecnologías avanzadas para la exploración del Universo y sus componentes” (PR47/21 TAU-CM) project funded by the Recovery, Transformation and Resilience Plan from the Spanish State, and by NextGenerationEU from the EU Recovery and Resilience Facility. The work of Universidad de Cantabria is supported by the Ministry of Science and Innovation under grant PID2019-110610RB-C22 and PID2022-137779OB-C43. All the groups acknowledge the financial support of the Research Network RED2022-134839-T.},
publisher = {Springer},
publisher = {Journal of Low Temperature Physics, 2024, 217(3-4), 522-527},
title = {Kinetic inductance detectors for the CADEx experiment: searching for axions in the W-band},
author = {Rodríguez Rodríguez, David and Calero de Ory, Marina and Aja Abelán, Beatriz and Fuente Rodríguez, Luisa María de la and Gallego Puyol, Juan Daniel and Villa Benito, Enrique and Pascual Gutiérrez, Juan Pablo and Artal Latorre, Eduardo and Granados Ruíz, Daniel and Martin Pintado, Jesús and Gómez Gutiérrez, Alicia},
}