Kher, A. and Day, P. K. and Eom, B. H. and Zmuidzinas, J. and Leduc, H. G. (2016) Kinetic Inductance Parametric Up-Converter. Journal of Low Temperature Physics, 184 (1). pp. 480-485. ISSN 0022-2291. https://resolver.caltech.edu/CaltechAUTHORS:20151207-102625019
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Abstract
We describe a novel class of devices based on the nonlinearity of the kinetic inductance of a superconducting thin film. By placing a current-dependent inductance in a microwave resonator, small currents can be measured through their effect on the resonator’s frequency. By using a high-resistivity material for the film and nanowires as kinetic inductors, we can achieve a large coefficient of nonlinearity to improve device sensitivity. We demonstrate a current sensitivity of 8pA/√Hz, making this device useful for transition-edge sensor (TES) readout and other cutting-edge applications. An advantage of these devices is their natural ability to be multiplexed in the frequency domain, enabling large detector arrays for TES-based instruments. A traveling-wave version of the device, consisting of a thin-film microwave transmission line, is also sensitive to small currents as they change the phase length of the line due to their effect on its inductance. We demonstrate a current sensitivity of 5pA/√Hz for this version of the device, making it also suitable for TES readout as well as other current-detection applications. It has the advantage of multi-GHz bandwidth and greater dynamic range, offering a different approach to the resonator version of the device.
| Item Type: | Article | |||||||||
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| Additional Information: | © 2015 Springer Science+Business Media New York. Published online: 30 November 2015. This work is supported by NASA Space Technology Research Fellowship Grant NNX12AM42H. Devices were fabricated at JPL. | |||||||||
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| Subject Keywords: | Kinetic inductance – Nonlinear – TES readout – Current sensor | |||||||||
| Issue or Number: | 1 | |||||||||
| Record Number: | CaltechAUTHORS:20151207-102625019 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20151207-102625019 | |||||||||
| Official Citation: | Kher, A., Day, P.K., Eom, B.H. et al. J Low Temp Phys (2016) 184: 480. doi:10.1007/s10909-015-1364-0 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 62647 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 08 Dec 2015 17:07 | |||||||||
| Last Modified: | 03 Oct 2019 09:20 |
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