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26 August 2022 Hybrid TiN-Al MKIDs
Michael R. Vissers, Jordan Wheeler, James Beall, Jason Austermann, Johannes Hubmayr, Jiansong Gao
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Proceedings Volume PC12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; PC121900K (2022) https://doi.org/10.1117/12.2630615
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada
Abstract
NIST developed MKID arrays based on TiN/Ti multilayers have been successfully deployed, but the 1/f knee of 1 Hz limits their use in some applications. We have created hybrid TiN-Al MKIDs that combine the low TLS noise of the TiN-Si interface with the high sensitivity and 1/f-noise free Al inductors. These hybrid MKIDs have been designed for the photon loadings of the CCAT-prime Project. A sub-array of devices was fabricated, and initial measurements will be shown that indicate that the devices are photon noise limited at the expected loading, with a 1/f knee below 0.1 Hz.
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Michael R. Vissers, Jordan Wheeler, James Beall, Jason Austermann, Johannes Hubmayr, and Jiansong Gao "Hybrid TiN-Al MKIDs", Proc. SPIE PC12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, PC121900K (26 August 2022); https://doi.org/10.1117/12.2630615
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KEYWORDS
Sensors
Interfaces
Microwave radiation
Photon polarization
Photonic devices
Polarimetry
Resistance
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