246 citations · 905 across the 12 of their papers we have counts for
5 papers · 1 filter
Low-noise kinetic inductance traveling-wave amplifier using three-wave mixing
Michael R. Vissers, Robert P. Erickson, Hsiang-Sheng Ku +4
We have fabricated a wide-bandwidth, high dynamic range, low-noise cryogenic amplifier based on a superconducting kinetic inductance traveling-wave device. The device was made from…
Hotspot Relaxation Dynamics in a Current Carrying Superconductor
F. Marsili, M. J. Stevens, A. Kozorezov +11
We experimentally studied the dynamics of optically excited hotspots in current carrying WSi superconducting nanowires as a function of bias current, bath temperature and excitatio…
Ultra-Broadband Microwave Frequency-Comb Generation in Superconducting Resonators
R. P. Erickson, M. R. Vissers, M. Sandberg +2
We have generated frequency combs spanning 0.5 to 20 GHz in superconducting half wave resonators at T=3 K. Thin films of niobium-titanium nitride enabled this development due to th…
Superconducting nanowire single photon detectors fabricated from an amorphous Mo0.75Ge0.25 thin film
V. B. Verma, A. E. Lita, M. R. Vissers +4
We present the characteristics of superconducting nanowire single photon detectors (SNSPDs) fabricated from amorphous Mo0.75Ge0.25 thin-films. Fabricated devices show a saturation…
Observation of quantum oscillations between a Josephson phase qubit and a microscopic resonator using fast readout
K. B. Cooper, Matthias Steffen, R. McDermott +5
We have detected coherent quantum oscillations between Josephson phase qubits and microscopic critical-current fluctuators by implementing a new state readout technique that is an…