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- Tholén, Erik, 1979-, et al.
(författare)
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Nonlinearities and parametric amplification in superconducting coplanar waveguide resonators
- 2007
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Ingår i: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 90:25, s. 253509-
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Tidskriftsartikel (refereegranskat)abstract
- Experimental investigations of the nonlinear properties of superconducting niobium coplanarwaveguide resonators are reported. The nonlinearity due to a current dependent kinetic inductanceof the center conductor is strong enough to realize bifurcation of the nonlinear oscillator. Whendriven with two frequencies near the threshold for bifurcation, parametric amplification with a gainof +22.4 dB is observed.
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