19 citations · 137 across the 27 of their papers we have counts for
3 papers · 1 filter
A Route to Large-Scale Ultra-Low Noise Detector Arrays for Far-Infrared Space Applications
D J Goldie, S. Withington, C. N. Thomas +2
Far-infrared detectors for future cooled space telescopes require ultra-sensitive detectors with optical noise equivalent powers of order 0.2 aW/\sqrt Hz. This performance has alre…
Effects of reactive, dissipative and rate-limited nonlinearity on the behaviour of superconducting resonator parametric amplifiers
Christopher N. Thomas, Stafford Withington, Songyuan Zhao
We present a formalism for modelling parametric amplification by resonators subject to rate-limited nonlinearity of mixed reactive/dissipative character, with particular relevance…
Nonlinear mechanisms in Al and Ti superconducting travelling-wave parametric amplifiers
Songyuan Zhao, Stafford Withington, Chris N. Thomas
The underlying nonlinear mechanisms behind the operation of travelling-wave parametric amplifiers (TWPAs) are important in determining their performance in terms of added noise, ma…