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LEKIDs Developments for mm-wave astronomy

Calvo, M., Hoffman, C., Benoit, A., Boudou, N., Cruciani, A., Doyle, Simon Michael ORCID:, Giordano, C., Hoarau, C., LeDuc, H., Mauskopf, Philip Daniel ORCID:, Monfardini, A., Roesch, M. and Schuster, K. 2012. LEKIDs Developments for mm-wave astronomy. Journal of Low Temperature Physics 167 (3-4) , pp. 379-385. 10.1007/s10909-012-0553-3

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Microwave Kinetic Inductance Detectors (MKIDs) have recently drawn the attention of the low-temperature detectors community. Easy fabrication, high sensitivity, small time constants and most notably the intrinsic capability to frequency multiplexing open new possibilities to applications that need very large array sizes and/or high speed read-out. Lumped Element Kinetic Inductance Detectors (LEKIDs) designed and fabricated in our collaboration have already shown good on sky performances, but new developments are needed for future multi-thousands-pixels instruments. In this contribution we present such ongoing developments: a new LEKIDs design, optimized to be dual polarization sensitive; use of new materials such as TiN in order to reach better signal to noise ratios; new solutions to minimize the cross-talk between pixels in order to achieve a better control of the resonance positions in frequency space. We discuss present lab measurements of the optical performances and recent improvements of the read-out electronics.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Kinetic Inductance Detectors, mm-wave astronomy
Publisher: SpringerLink
ISSN: 0022-2291
Last Modified: 19 Oct 2022 09:54

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