Erickson, R.
, Vissers, M.
, Sandberg, M.
, Jefferts, S.
and Pappas, D.
(2014),
Frequency Comb Generation in Superconducting Resonators, Physical Review Letters, [online], https://doi.org/10.1103/PhysRevLett.113.187002
(Accessed November 21, 2024)
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Frequency Comb Generation in Superconducting Resonators
Published
Author(s)
Robert P. Erickson, , , ,
Abstract
We have generated frequency combs spanning 0.5 to 20 GHz in superconducting λ=2 resonators at T ¼ 3 K. Thin films of niobium-titanium nitride enabled this development due to their low loss, high nonlinearity, low frequency dispersion, and high critical temperature. The combs nucleate as sidebands around multiples of the pump frequency. Selection rules for the allowed frequency emission are calculated using perturbation theory, and the measured spectrum is shown to agree with the theory. Sideband spacing is measured to be accurate to 1 part in 108. The sidebands coalesce into a continuous comb structure observed to cover at least several frequency octaves.Citation
Physical Review Letters
Issue
18
Pub Type
Journals
Download Paper
Keywords
superconducting detectors, resonators
Citation
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Created October 29, 2014, Updated October 12, 2021