Fyhrie, A. and Day, P. and Glenn, J. and Leduc, H. and McKenney, C. and Perido, J. and Zmuidzinas, J. (2020) Decay Times of Optical Pulses for Aluminum CPW KIDs. Journal of Low Temperature Physics, 199 (3-4). pp. 688-695. ISSN 0022-2291. https://resolver.caltech.edu/CaltechAUTHORS:20200515-154728331
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Abstract
The recombination rate of quasiparticle excitations and metal film thickness are both important factors in determining the sensitivity of kinetic inductance detectors (KIDs). To maximize KID sensitivity, we aim to quantify the interdependence of these two detector attributes. We have measured the decay times of optical pulses produced by illuminating aluminum CPW resonators with an infrared LED. Measurements were made using both 1/4-wavelength and 1/2-wavelength resonators for film thicknesses between 20 and 50 nm for a range of temperatures and microwave readout powers. We observed several millisecond decay times for all thicknesses, with an elevated decay time (∼5 ms) and critical temperature (∼1.5 K) for the 20-nm-thick film.
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| Additional Information: | © 2020 Springer Nature Switzerland AG. Received 20 August 2019; Accepted 30 January 2020; Published 28 February 2020. | ||||||||
| Group: | Astronomy Department | ||||||||
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| Subject Keywords: | Kinetic inductance detector; Far-infrared; Quasiparticle recombination | ||||||||
| Issue or Number: | 3-4 | ||||||||
| Record Number: | CaltechAUTHORS:20200515-154728331 | ||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20200515-154728331 | ||||||||
| Official Citation: | Fyhrie, A., Day, P., Glenn, J. et al. Decay Times of Optical Pulses for Aluminum CPW KIDs. J Low Temp Phys 199, 688–695 (2020). https://doi.org/10.1007/s10909-020-02377-7 | ||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||
| ID Code: | 103250 | ||||||||
| Collection: | CaltechAUTHORS | ||||||||
| Deposited By: | Tony Diaz | ||||||||
| Deposited On: | 15 May 2020 22:52 | ||||||||
| Last Modified: | 15 May 2020 22:52 |
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