A Caltech Library Service

Kinetic Inductance Parametric Up-Converter

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.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


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
Related URLs:
URLURL TypeDescription
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.
Funding AgencyGrant Number
NASA Space Technology Research FellowshipNNX12AM42H
Subject Keywords:Kinetic inductance – Nonlinear – TES readout – Current sensor
Issue or Number:1
Record Number:CaltechAUTHORS:20151207-102625019
Persistent URL:
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
Deposited By: Tony Diaz
Deposited On:08 Dec 2015 17:07
Last Modified:03 Oct 2019 09:20

Repository Staff Only: item control page