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Pound-locking for characherization of superconducting microresonators.

Lindstrom, T; Burnett, J; Oxborrow, M; Tzalenchuk, A (2011) Pound-locking for characherization of superconducting microresonators. Rev. Sci. Instrum., 82 (10). 104706

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We present a new application and implementation of the so-called Pound locking technique for the interrogation of superconducting microresonators. We discuss how by comparing against stable frequency sources this technique can be used to characterize properties of resonators that can not be accessed using traditional methods. Specifically, byy analyzing the noise spectra and the Allan deviation we obtain valuable information about the nature of the noise in superconducting planar resonators. This technique also greatly improves the read-out accuracy and measurement throughput compared to conventional methods.

Item Type: Article
Keywords: superconducting resonators, frequency noise, two-level fluctuators
Subjects: Electromagnetics
Electromagnetics > Electrical Measurement
Identification number/DOI: 10.1063/1.3648134
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/5291

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