@article{10902/20761,
year = {2021},
month = {1},
url = {http://hdl.handle.net/10902/20761},
abstract = {Lumped-element superconducting resonators are a promising technology for their use in millimeter-wave observations and quantum computing applications that require large arrays of extremely sensitive detectors. Among them, lumped-element kinetic inductance detectors (LEKIDs) have shown good performance in the submillimeter band in several earth-based telescopes. In this work, LEKIDs for their use as millimeter-wave receivers of astronomical applications are presented. LEKID arrays using a thin bilayer of superconducting titanium/aluminum (Ti/Al), deposited on the silicon substrate, have been designed and fabricated. The design of a dual-polarization LEKID with the goal of detection at the W -band for two orthogonal polarizations is described and a fabricated array has demonstrated absorption at ambient temperature. Also, an approximate design methodology of the coupling parameter for LEKIDs' readout, essential for dynamic range optimization of the detector under millimeter-wave radiation, is proposed. In addition, the resonance characteristics and coupling factor of the fabricated superconducting resonators using high-quality internal factor Qi under cryogenic temperatures have been analyzed. The design guidelines in this work are applicable to other LEKID arrays, and the presented superconducting Ti/Al thin-film LEKIDs can be used in future receiver arrays in the millimeter bands.},
organization = {This work was supported by Ministry of Science, Innovation and Universities under Grants ESP2017-83921-C2-2-R, ESP2017-86582-C4-1-R, ESP2017-86582-C4-3-R, ESP2017-92706-EXP, AYA2017-92153-EXP, “Severo Ochoa” Programme for Centres of Excellence in R&D (MINECO, Grant SEV-2016-0686). By Comunidad de Madrid under Grant P2018/NMT-4291. D.G. and A.G also acknowledge Grant DEFROST N62909-19-1-2053 from ONRGlobal. A.G. acknowledges IJCI-2017-33991.},
publisher = {Institute of Electrical and Electronics Engineers Inc.},
publisher = {IEEE Transactions on Microwave Theory and Techniques, 2021, 69(1), 578-589},
publisher = {IEEE MTT-S International Microwave Symposium (IMS), Los Angeles, USA, 2020},
publisher = {},
title = {Analysis and performance of lumped-element kinetic inductance detectors for W-band},
author = {Aja Abelán, Beatriz and Calero de Ory, Marina and Fuente Rodríguez, Luisa María de la and Artal Latorre, Eduardo and Pascual Gutiérrez, Juan Pablo and Magaz Pérez, María Teresa and Granados Ruiz, Daniel and Gómez Gutiérrez, Alicia},
}