Performance of photon counting, optical to near-IR Microwave Kinetic Inductance Detectors utilizing proximity effects in Ti / TiN multilayers

Gerhard Ulbricht; Mario De Lucia; Eoin Baldwin; Jack D. Piercy; Oisin Creaner; Colm Bracken; Tom Ray

doi:10.1117/12.2626869

29 August 2022 Performance of photon counting, optical to near-IR Microwave Kinetic Inductance Detectors utilizing proximity effects in Ti / TiN multilayers

Gerhard Ulbricht, Mario De Lucia, Eoin Baldwin, Jack D. Piercy, Oisin Creaner, Colm Bracken, Tom Ray

Author Affiliations +

Proceedings Volume 12191, X-Ray, Optical, and Infrared Detectors for Astronomy X; 1219106 (2022) https://doi.org/10.1117/12.2626869
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

MKIDs are promising candidates for next generation optical-IR instrumentation as they combine single pixel energy resolution, photon counting and vanishing dark counts with the possibility of megapixel arrays. Ti/TiN multilayers have significant advantages for MKIDs as they allow full control of the superconducting energy gap. We will compare the performance of different Ti/TiN stacks varying in Tc, layer number and film thickness. We have already achieved Qi up to 150 000 and will demonstrate how to control energy resolution and Qi and explore the proximity effect’s limits in the Ti/TiN system.

Conference Presentation

Citation Download Citation

Gerhard Ulbricht, Mario De Lucia, Eoin Baldwin, Jack D. Piercy, Oisin Creaner, Colm Bracken, and Tom Ray "Performance of photon counting, optical to near-IR Microwave Kinetic Inductance Detectors utilizing proximity effects in Ti / TiN multilayers", Proc. SPIE 12191, X-Ray, Optical, and Infrared Detectors for Astronomy X, 1219106 (29 August 2022); https://doi.org/10.1117/12.2626869

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