Design, fabrication, and testing of lumped element kinetic inductance detectors for 3 mm CMB Observations

Amy E. Lowitz; Ari-David Brown; Thomas R. Stevenson; Peter T. Timbie; Edward J. Wollack

doi:10.1117/12.2057102

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23 July 2014 Design, fabrication, and testing of lumped element kinetic inductance detectors for 3 mm CMB Observations

Amy E. Lowitz, Ari-David Brown, Thomas R. Stevenson, Peter T. Timbie, Edward J. Wollack

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Proceedings Volume 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII; 91532R (2014) https://doi.org/10.1117/12.2057102
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

Kinetic inductance detectors (KIDs) are a promising technology for low-noise, highly-multiplexible mm- and submm-wave detection. KIDs have a number of advantages over other detector technologies, which make them an appealing option in the cosmic microwave background B-mode anisotropy search, including passive frequency domain multiplexing and relatively simple fabrication, but have suffered from challenges associated with noise control. Here we describe design and fabrication of a 20-pixel prototype array of lumped element molybdenum KIDs. We show Q, frequency and temperature measurements from the array under dark conditions. We also present evidence for a double superconducting gap in molybdenum.

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Amy E. Lowitz, Ari-David Brown, Thomas R. Stevenson, Peter T. Timbie, and Edward J. Wollack "Design, fabrication, and testing of lumped element kinetic inductance detectors for 3 mm CMB Observations", Proc. SPIE 9153, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII, 91532R (23 July 2014); https://doi.org/10.1117/12.2057102

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