Europhysics Letters (EPL)
We utilize a superconducting stripline resonator containing a dc-SQUID as a strong intermodulation amplifier exhibiting a signal gain of 24dB and a phase modulation of 30dB. Studying the system response in the time domain near the intermodulation amplification threshold reveals a unique noise-induced spikes behavior. We account for this response qualitatively via solving numerically the equations of motion for the integrated system. Furthermore, employing this device as a parametric amplifier yields an abrupt rise of 38dB in the generated side-band signal.
Abdo, B.; Suchoi, O.; Segev, E.; Shtempluck, O.; Blencowe, M.; and Buks, E., "Intermodulation and Parametric Amplification in a Superconducting Stripline Resonator Integrated with a dc-SQUID" (2009). Open Dartmouth: Faculty Open Access Articles. 838.