2011/06/30 by Tobias Lindström, Jonathan Burnett, Mark Oxborrow +1 · 1 citation
Physics and Astronomy · #physics.ins-det
paper · pdf · doi:10.1063/1.3648134
published as Rev. Sci. Instrum. 82, 104706 (2011) · 5 pages
arxiv created 2011/07/11 · arxiv updated 2015/05/28
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, by 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.