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Thermal kinetic inductance detectors for millimeter-wave detection

Wandui, Albert and Bock, James J. and Frez, Clifford and Hollister, M. and Minutolo, Lorenzo and Nguyen, Hien and Steinbach, Bryan and Turner, Anthony and Zmuidzinas, Jonas and O’Brient, Roger (2020) Thermal kinetic inductance detectors for millimeter-wave detection. Journal of Applied Physics, 128 (4). Art. No. 044508. ISSN 0021-8979. doi:10.1063/5.0002413.

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Thermal Kinetic-Inductance Detectors (TKIDs) combine the excellent noise performance of traditional bolometers with a radio frequency multiplexing architecture that enables the large detector counts needed for the next generation of millimeter-wave instruments. In this paper, we first discuss the expected noise sources in TKIDs and derive the limits where the phonon noise contribution dominates over the other detector noise terms: generation–recombination, amplifier, and two-level system noise. Second, we characterize aluminum TKIDs in a dark environment. We present measurements of TKID resonators with quality factors of about 10⁵ at 80 mK. We also discuss the bolometer thermal conductance, heat capacity, and time constants. These were measured by the use of a resistor on the thermal island to excite the bolometers. These dark aluminum TKIDs demonstrate a noise equivalent power, NEP = 2×10⁻¹⁷ W/√Hz, with a 1/f knee at 0.1 Hz, which provides background noise limited performance for ground-based telescopes observing at 150 GHz.

Item Type:Article
Related URLs:
URLURL TypeDescription
Wandui, Albert0000-0002-8232-7343
Bock, James J.0000-0002-5710-5212
Minutolo, Lorenzo0000-0002-4876-112X
Additional Information:© 2020 Published under license by AIP Publishing. Submitted: 24 January 2020; Accepted: 13 July 2020; Published Online: 29 July 2020. The research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. We acknowledge the JPL Research and Technology Development (RTD) program for supporting funds, as well as the Dominic Orr Graduate Fellowship in Physics at Caltech for supporting A. Wandui’s graduate research. We are grateful to Warren Holmes for his early guidance in shaping this project. Data Availability: The data that support the findings of this study are available from the corresponding author upon reasonable request.
Group:Astronomy Department
Funding AgencyGrant Number
JPL Research and Technology Development FundUNSPECIFIED
Dominic Orr Graduate FellowshipUNSPECIFIED
Issue or Number:4
Record Number:CaltechAUTHORS:20200729-143211488
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104643
Deposited By: Tony Diaz
Deposited On:29 Jul 2020 21:58
Last Modified:16 Nov 2021 18:33

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