activity
20122025
most citedSpin resonance linewidths of bismuth donors in silicon coupled to planar microresonators

19 citations · 137 across the 27 of their papers we have counts for

collaborators

27 papers

cond-mat.supr-con2025

Superconducting NbN Resonator Parametric Amplifiers for Millimetre Wavelengths

Songyuan Zhao, Stafford Withington, Christopher Thomas

We report the development of a reactive sputtering process for high NbN films with high normal-state resistivity, tailored for kinetic inductance parametric amplifie…

cond-mat.supr-con2025★ 1 cited

Superconducting Ring Resonators: Modelling, Simulation, and Experimental Characterisation

Zhenyuan Sun, Stafford Withington, Christopher Thomas +1

We present a theoretical and experimental study of superconducting ring resonators as an initial step toward their implementation in superconducting electronics and quantum technol…

quant-ph2025★ 1 cited

Non-degenerate pumping of superconducting resonator parametric amplifier with evidence of phase-sensitive amplification

Songyuan Zhao, Stafford Withington, Christopher Thomas

Superconducting resonator parametric amplifiers are potentially important components for a wide variety of fundamental physics experiments and utilitarian applications. We propose…

physics.ins-det2024★ 6 cited

Superconducting resonator parametric amplifiers with intrinsic separation of pump and signal tones

Songyuan Zhao, Stafford Withington, Christopher Niall Thomas

Superconducting resonator parametric amplifiers achieve ultra-low-noise amplification through the nonlinear kinetic inductance of thin-film superconductors. One of the main challen…

physics.ins-det2024

Superconducting Microwave Detector Technology for Ultra-Light Dark Matter Haloscopes and other Fundamental Physics Experiments: Device Physics (Part II)

David J. Goldie, Stafford Withington, Christopher N. Thomas

We consider and compare candidate superconducting detector technologies that might be applied to the readout of cavity-axion haloscopes and similar fundamental physics experiments.…

physics.ins-det2024

Superconducting Microwave Detector Technology for Ultra-Light Dark Matter Haloscopes and other Fundamental Physics Experiments: Background Theory (Part I)

Christopher N. Thomas, Stafford Withington, David J. Goldie

We consider how superconducting microwave detector technology might be applied to the readout of cavity-axion haloscopes and similar fundamental physics experiments. Expressions fo…